v1.7.42 Jul 16, 2019
=====================

* Removes Bundled With from Gemfile.lock if bundled with an earlier version of Bundler 2
  - This addresses a bug in bundler, where Bundler 2.0.2 will error out if trying to run  with a Gemfile packaged with Bundler 2.0.1
  (https://www.pivotaltracker.com/story/show/167301748)

* Add yarn 1.17.3, remove yarn 1.16.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/167268056)

v1.7.41 Jun 19, 2019
=====================

* Remove ruby 2.3 and 2.2
  - Update integration tests
  - Set 2.4 as default version
  (https://www.pivotaltracker.com/story/show/165296435)

v1.7.40 Jun 05, 2019
=====================

* Add node 10.16.0, remove node 10.15.3
  for stack(s) cflinuxfs3
  (https://www.pivotaltracker.com/story/show/166317034)

v1.7.39 May 15, 2019
=====================

* Update the openjdk dependency to 1.8.0_212
  (https://www.pivotaltracker.com/story/show/165405673)

* Add yarn 1.16.0, remove yarn 1.15.2
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/165924485)

* Remove logic that was added to support both Node 6.x and 10x, and set default version of node to 10.x
  (https://www.pivotaltracker.com/story/show/164990934)

* update install_go.sh script to use go 1.12.4

v1.7.38 Apr 23, 2019
=====================

* Add ruby 2.6.3, remove ruby 2.6.1
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/165546727)

v1.7.37 Apr 23, 2019
=====================

* Add node 10.15.3
  for stack(s) cflinuxfs3
  (https://www.pivotaltracker.com/story/show/164408746)

* Enable multiple node dependencies
  - Defaults to version 6
  - Parses version from package.json
  (https://www.pivotaltracker.com/story/show/165216936)

* Add jruby 9.2.7.0, remove jruby 9.2.6.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/165224918)


v1.7.36 Apr 08, 2019
=====================

* Update README with correct packager installation
  (https://www.pivotaltracker.com/story/show/164889000)

* Add node 6.17.1, remove node 6.17.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/165104943)

* Add ruby 2.4.6, remove ruby 2.4.4
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/165037294)

v1.7.35 Mar 20, 2019
=====================

* Add ruby 2.5.5, remove ruby 2.5.1
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/164698728)
  (https://www.pivotaltracker.com/story/show/164607786)

* Add yarn 1.15.2, remove yarn 1.13.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/164657895)
  (https://www.pivotaltracker.com/story/show/164518593)

* Bump ruby to 2.6.1
  (https://www.pivotaltracker.com/story/show/164607809)

* Add ruby 2.6.2, remove ruby 2.6.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/164607809)

* Add rubygems 3.0.3, remove rubygems 3.0.2
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/164388659)

v1.7.34 Mar 01, 2019
=====================

* Add node 6.17.0, remove node 6.16.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/164301707)

* Add source and source_sha256 to buildpack
  (https://www.pivotaltracker.com/story/show/163711928)

v1.7.33 Feb 20, 2019
=====================

* Exit out when an unsupported stack is used
  (https://www.pivotaltracker.com/story/show/164076510)

* Add jruby 9.2.6.0, remove jruby 9.2.5.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/163887213)


v1.7.32 Feb 08, 2019
=====================

* Add ruby 2.6.1
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/163714607)

* Use built version of go 1.11.5 in online unbuilt/URL buildpack
  (https://www.pivotaltracker.com/story/show/163701450)

v1.7.31 Jan 23, 2019
=====================

* Use built version of go 1.11.4 in online unbuilt/URL buildpack
  (https://www.pivotaltracker.com/story/show/163089977)

* Fix bundler 2 installation
  - Always install bundler 1
  - Allow bundler 2 to automatically select bundler version to use assuming ruby version >= 2.3
  (https://www.pivotaltracker.com/story/show/163379014)


v1.7.30 Jan 17, 2019
=====================

* Add bundler 2.0.1
  (https://www.pivotaltracker.com/story/show/162976046)

* Vendor with Go Modules
  - Fix performance regression when the buildpack is executed directly
    from github by re-vendoring source code
  (https://www.pivotaltracker.com/story/show/162654926)

* Add yarn 1.13.0, remove yarn 1.12.3
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/163083614)

* Add ruby 2.6.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/163068800)

* Add rubygems 3.0.2, remove rubygems 3.0.1
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/162898690)


v1.7.29 Dec 31, 2018
=====================

* Add bundler 1.17.3, remove bundler 1.17.2
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/162854170)

* Add node 6.16.0, remove node 6.15.1
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/162848357)

* Add rubygems 3.0.1, remove rubygems 3.0.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/162826519)

* Add rubygems 3.0.0, remove rubygems 2.7.8
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/162752226)

* Rebuild bundler 1.17.2
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/162575159)


v1.7.28 Dec 11, 2018
=====================

* Add bundler 1.17.2, remove bundler 1.17.1
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/162575159)

* Add jruby 9.2.5.0, remove jruby 9.2.4.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/162492685)

* Add node 6.15.1, remove node 6.14.4
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/162382561)

* Fix bug for rails >4 apps using webpack in place of sprockets
  (https://www.pivotaltracker.com/story/show/162246741)

v1.7.27 Nov 15, 2018
=====================

* Add jruby 9.2.4.0, remove jruby 9.2.0.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/161937451)

* Add yarn 1.12.3, remove yarn 1.12.1
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/161784171)

* Set buildpack when pushing twice
      - Pushing with --no-start fails on the second push when no buildpack
        is specified in PCF 1.12, our new lts version

* Add rubygems 2.7.8, remove rubygems 2.7.7
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/161672493)

v1.7.26 Oct 31, 2018
=====================

* Can supply and finalize with custom-named Gemfile and Gemfile.lock
  (https://www.pivotaltracker.com/story/show/161122636)

* Add ruby 2.4.5, remove ruby 2.4.3
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/161601057)

* Add ruby 2.3.8, remove ruby 2.3.6
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/161601009)

* Add ruby 2.5.3, remove ruby 2.5.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/161601099)

* Add yarn 1.12.1, remove yarn 1.10.1
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/161522145)


v1.7.25 Oct 26, 2018
=====================

* Add openjdk-1.8.0_192, remove openjdk-1.8.0_181
  (https://www.pivotaltracker.com/story/show/161306633)

* Rebuild jruby 9.2.0.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/159273964)

* Rebuild jruby 9.1.17.0
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/159273965)

* Add bundler 1.17.1, remove bundler 1.16.6
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/161494417)

v1.7.24 Oct 11, 2018
=====================

* Add bundler 1.16.6, remove bundler 1.16.4
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/161009633)

* Add yarn 1.10.1, remove yarn 1.9.4
  for stack(s) cflinuxfs2, cflinuxfs3
  (https://www.pivotaltracker.com/story/show/160793556)

v1.7.23 Sep 10, 2018
=====================

* Add yarn 1.9.4, remove yarn 1.9.2
  (https://www.pivotaltracker.com/story/show/159534896)

* Add openjdk-1.8.0_181, remove openjdk-1.8.0_172
  (https://www.pivotaltracker.com/story/show/159293112)

* Add bundler 1.16.4, remove bundler 1.16.3
  (https://www.pivotaltracker.com/story/show/159888816)

* Remove node 6.14.3
  (https://www.pivotaltracker.com/story/show/159814060)


v1.7.22 Jul 27, 2018
=====================

* Rebuild ruby 2.2.10, 2.3.7, 2.4.4, 2.5.1
  for stacks cflinuxfs3
  (https://www.pivotaltracker.com/story/show/144938923)

* Rebuild node 6.14.3
  for stacks cflinuxfs3

* Add yarn 1.9.2, remove yarn 1.7.0
  for stacks cflinuxfs2, cflinuxfs3

* Add rubygems 2.7.7
  for stacks cflinuxfs3

* Add bundler 6.14.3
  for stacks cflinuxfs3

* Remove node 4.X.X version line
  - This version line is deprecated
  (https://www.pivotaltracker.com/story/show/157362046)


v1.7.21 Jun 25, 2018
=====================

* Add jruby 9.2.0.0 (implements ruby 2.5.0)
  (https://www.pivotaltracker.com/story/show/157851009)

v1.7.20 Jun 19, 2018
=====================

* Make windows gemfile lock detection depend on line endings and absence of both ruby and jruby.
  (https://www.pivotaltracker.com/story/show/157325297)

* Add node 6.14.3, remove node 6.14.2
  (https://www.pivotaltracker.com/story/show/158314054)

v1.7.19 Jun 05, 2018
=====================

* Add yarn 1.7.0, remove yarn 1.6.0
  (https://www.pivotaltracker.com/story/show/157827921)

* Add rubygems 2.7.7, remove rubygems 2.7.6
  (https://www.pivotaltracker.com/story/show/157685124)

* Add bundler 1.16.2, remove bundler 1.16.1
  (https://www.pivotaltracker.com/story/show/157645319)

v1.7.18 May 08, 2018
=====================

* Add ruby 2.2.10, remove ruby 2.2.8
  (https://www.pivotaltracker.com/story/show/157255054)

* Add ruby 2.3.7, remove ruby 2.3.5
  (https://www.pivotaltracker.com/story/show/157255099)

* Add ruby 2.4.4, remove ruby 2.4.2
  (https://www.pivotaltracker.com/story/show/157255117)

* Add node 6.14.2, remove node 6.14.1
  (https://www.pivotaltracker.com/story/show/157199825)

* Update openjdk to 1.8.0_172
  (https://www.pivotaltracker.com/story/show/156971105)


v1.7.17 Apr 25, 2018
=====================

* Update jruby versions
  - Remove deprecated versions: 'ruby-1.9.3-jruby-1.7.26' and 'ruby-2.0.0-jruby-1.7.26'
  - Remove 'ruby-2.3.3-jruby-9.1.16.0'
  - Add 'ruby-2.3.3-jruby-9.1.17.0'
  (https://www.pivotaltracker.com/story/show/157006756)

* Add node 10.0.0
  (https://www.pivotaltracker.com/story/show/157065173)

* Add yarn 1.6.0, remove yarn 1.5.1
  (https://www.pivotaltracker.com/story/show/156786250)

* Fix staging failure when writing a start command fails
  (https://www.pivotaltracker.com/story/show/156748474)

* Fix incorrect runtime prefix for app/ld_library_path
  (https://www.pivotaltracker.com/story/show/155928706)

v1.7.16 Apr 03, 2018
=====================

* Add node 4.9.1, remove node 4.9.0
  (https://www.pivotaltracker.com/story/show/156394483)

* Add node 6.14.1, remove node 6.14.0
  (https://www.pivotaltracker.com/story/show/156394483)

* Add ruby 2.5.1
  (https://www.pivotaltracker.com/story/show/156373044)

* Add node 4.9.0, remove node 4.8.7
  (https://www.pivotaltracker.com/story/show/156350231)

* Add node 6.14.0, remove node 6.13.1
  (https://www.pivotaltracker.com/story/show/156350231)

* Update ffi gem to 1.9.23 in rails51 fixtures
  (https://www.pivotaltracker.com/story/show/155086373)

v1.7.15 Mar 09, 2018
=====================

* Use manifest cache downloads
  (https://www.pivotaltracker.com/story/show/155405429)

* Add node 6.13.1, remove node 6.13.0
  (https://www.pivotaltracker.com/story/show/155758175)

* Trim spaces from SecretKeyBase
  (https://www.pivotaltracker.com/story/show/155664134)

* Add yarn 1.5.1, remove yarn 1.3.2
  (https://www.pivotaltracker.com/story/show/155546203)


v1.7.14 Feb 26, 2018
=====================

* Add jruby 9.1.16.0, remove 9.1.15.0
  (https://www.pivotaltracker.com/story/show/155414392)

v1.7.13 Feb 20, 2018
=====================

* Add rubygems 2.7.6, remove rubygems 2.7.4
  (https://www.pivotaltracker.com/story/show/155285561)
  (https://www.pivotaltracker.com/story/show/154949275)

* Add node 6.13.0, remove node 6.12.3
  (https://www.pivotaltracker.com/story/show/155196463)

v1.7.12 Feb 09, 2018
=====================

* Handle puts in Gemfile for version detection
  (https://www.pivotaltracker.com/story/show/155047298)

* Enable manifest apply override
  (https://www.pivotaltracker.com/story/show/153614649)

* Add Openjdk 1.8.0_162, Remove 1.8.0_152
  (https://www.pivotaltracker.com/story/show/154634186)

v1.7.11 Jan 26, 2018
=====================

* Fix bug with rails asset:precompile
  - Bug was discovered to exist when using webpacker, or somethinge which used
    bundler to call bunder, and thus forced a simpler GEM_PATH than required.
  - Rewrite Shebangs on a larger collection of files
  (https://www.pivotaltracker.com/story/show/154546718)

v1.7.10 Jan 19, 2018
=====================

* Add rubygems 2.7.4, remove 2.6.13
  (https://www.pivotaltracker.com/story/show/154440553)

v1.7.9 Jan 05, 2018
====================

* Set default ruby to 2.4 version line

* Add node 6.12.3, remove node 6.12.2
  (https://www.pivotaltracker.com/story/show/154004430)

* Add ruby 2.5.0
  (https://www.pivotaltracker.com/story/show/153964335)

* Set SECRET_KEY_BASE during "rake assets:precompile"
  (https://www.pivotaltracker.com/story/show/153607818)

* Add bundler 1.16.1, remove bundler 1.16.0
  (https://www.pivotaltracker.com/story/show/153858048)

* Add ruby 2.4.3, 2.3.6, 2.2.9, remove 2.4.1, 2.3.4, 2.2.7
  (https://www.pivotaltracker.com/story/show/153669326)

* Remove ruby 2.1.x
  (https://www.pivotaltracker.com/story/show/152620209)


v1.7.8 Dec 12, 2017
====================

* Add jruby 9.1.15.0, remove jruby 9.1.13.0
  (https://www.pivotaltracker.com/story/show/153491050)
  (https://www.pivotaltracker.com/story/show/152721520)

* Add node 4.8.7, remove node 4.8.6
  (https://www.pivotaltracker.com/story/show/153514063)

* Add node 6.12.2, remove node 6.12.0
  (https://www.pivotaltracker.com/story/show/153514063)
  (https://www.pivotaltracker.com/story/show/153407348)

* Adds bundler 1.16.0, removes bundler 1.15.4
  - Regenerates bundler binstub to account for incompatibility with Rails
  generated ones. See:
     * https://github.com/rails/rails/issues/31193
     * https://github.com/bundler/bundler/issues/6149
  - binstubs are no longer modified; BUNDLE_GEMFILE is set instead
  (https://www.pivotaltracker.com/story/show/152452239)

v1.7.7 Nov 21, 2017
====================

* Put APP/ld_library_path in LD_LIBRARY_PATH
  (https://www.pivotaltracker.com/story/show/152718589)

* Add node 4.8.6, remove node 4.8.5
  (https://www.pivotaltracker.com/story/show/152648755)

* Add node 6.12.0, remove node 6.11.5
  (https://www.pivotaltracker.com/story/show/152648755)

v1.7.6 Nov 06, 2017
====================

* Add openjdk 1.8.0_152, Remove 1.8.0_144
  (https://www.pivotaltracker.com/story/show/152430529)

* Verify dependency downloads using sha256 instead of md5
  (https://www.pivotaltracker.com/story/show/151913767)

v1.7.5 Oct 25, 2017
====================

* Add node 4.8.5, remove node 4.8.4
  (https://www.pivotaltracker.com/story/show/152260475)

* Add node 6.11.5, remove node 6.11.4
  (https://www.pivotaltracker.com/story/show/152260475)

v1.7.4 Oct 12, 2017
====================

* Using ruby buildpack as a supply buildpack does not require a Gemfile
  (https://www.pivotaltracker.com/story/show/151542741)

* Add node 6.11.4, remove node 6.11.3
  (https://www.pivotaltracker.com/story/show/151659499)

* Add yarn 1.2.1, remove yarn 1.1.0
  (https://www.pivotaltracker.com/story/show/151912328)
  (https://www.pivotaltracker.com/story/show/151833736)

v1.7.3 Sep 27, 2017
====================

* Write shims in app/bin/ in ruby instead of bash
  Preserves functionality when commands are run with ruby/jruby
  (https://www.pivotaltracker.com/story/show/151369802)

* Add yarn 1.1.0, remove yarn 1.0.2
  (https://www.pivotaltracker.com/story/show/151359400)

v1.7.2 Sep 22, 2017
====================

* Rewrite binstubs to use runtime app location
  (https://www.pivotaltracker.com/story/show/151255308)

v1.7.1 Sep 18, 2017
====================

* Rewrite all shebangs - fixes a bug with "gem"
  (https://www.pivotaltracker.com/story/show/151139503)

v1.7.0 Sep 14, 2017
=====================

* Rewrite buildpack using libbuildpack
  behavioural changes:
  * ensure supply does not change build dir
  * gems are available when the buildpack is not last in order
  (https://www.pivotaltracker.com/story/show/149435225)

* Add ruby 2.4.2, 2.3.5, 2.2.8. Remove 2.4.0, 2.3.3, 2.2.6
  (https://www.pivotaltracker.com/story/show/151087653)

* Add yarn 1.0.2, remove yarn 0.27.5
  (https://www.pivotaltracker.com/story/show/151059801)
  (https://www.pivotaltracker.com/story/show/150886385)
  (https://www.pivotaltracker.com/story/show/150856905)
  (https://www.pivotaltracker.com/story/show/150856905)

* Update rubygems if older than version in manifest
  (https://www.pivotaltracker.com/story/show/150884901)

* Add jruby 9.1.13.0, Remove jruby 9.1.12.0
  (https://www.pivotaltracker.com/story/show/150863849)

* Add node 6.11.3, remove node 6.11.2
  (https://www.pivotaltracker.com/story/show/150824934)

* Update openjdk from 1.8.0_141 -> 1.8.0_144
  (https://www.pivotaltracker.com/story/show/150621073)

* Add bundler 1.15.4, remove bundler 1.15.3
  (https://www.pivotaltracker.com/story/show/150383252)

v1.6.47 Aug 07, 2017
=====================

* Add node 6.11.2, remove node 6.11.1
  (https://www.pivotaltracker.com/story/show/149837609)

v1.6.46 Jul 31, 2017
=====================

* Update openjdk 1.8.0_131 -> 1.8.0_141
  (https://www.pivotaltracker.com/story/show/149546525)

* Log a message if node is already supplied
  (https://www.pivotaltracker.com/story/show/147464525)

v1.6.45 Jul 24, 2017
=====================

* Add bundler 1.15.3, remove bundler 1.15.1
  (https://www.pivotaltracker.com/story/show/149029147)
  (https://www.pivotaltracker.com/story/show/149328823)

* link to dep/*/bin/* using bash script instead of symlinks
  (https://www.pivotaltracker.com/story/show/149299715)

* Only emit warnings inline to avoid both duplication and confusion during diagnosis
  (https://www.pivotaltracker.com/story/show/148696219)

* Avoid warning developers about having vendor/bundle in their repository when they had not
  (https://www.pivotaltracker.com/story/show/148696219)

v1.6.44 Jul 13, 2017
=====================

* Add node 4.8.4, remove node 4.8.3
  (https://www.pivotaltracker.com/story/show/148684925)

* Add node 6.11.1, remove node 6.11.0
  (https://www.pivotaltracker.com/story/show/148684925)

v1.6.43 Jul 10, 2017
=====================

* Add yarn 0.27.5, remove yarn 0.24.6
  (https://www.pivotaltracker.com/story/show/148175165)
  (https://www.pivotaltracker.com/story/show/148169407)
  (https://www.pivotaltracker.com/story/show/148107277)
  (https://www.pivotaltracker.com/story/show/147751911)

* Add jruby 9.1.12.0, remove 9.1.10.0
  (https://www.pivotaltracker.com/story/show/147283461)

v1.6.42 Jun 22, 2017
=====================

* Amend license, and fix readme links
  (https://www.pivotaltracker.com/story/show/147439591)
  (https://www.pivotaltracker.com/story/show/147615323)

* Add node 6.11.0, remove node 6.10.3
  (https://www.pivotaltracker.com/story/show/146731549)


v1.6.41 Jun 06, 2017
=====================

* Convert to online-only distribution.
  - See: http://cf-dev.70369.x6.nabble.com/cf-dev-Discontinuing-Distribution-of-the-Offline-Buildpacks-td6732.html
  (https://www.pivotaltracker.com/story/show/146375487)

* Add jruby 9.1.10.0, remove jruby 9.1.9.0
  (https://www.pivotaltracker.com/story/show/146119231)

* Add bundler 1.15.1, remove bundler 1.15.0
  source url: https://rubygems.org/downloads/bundler-1.15.1.gem
  source sha256: fa6ec48f94faffe4987f89b4b85409fd6a4ddce8d46f779acdc26d041eb200d7
  (https://www.pivotaltracker.com/story/show/146502569)


v1.6.40 May 26, 2017
=====================

* Add bundler 1.15.0, remove bundler 1.14.6
  (https://www.pivotaltracker.com/story/show/145768065)

* Add yarn 0.24.6, remove yarn 0.24.4
  (https://www.pivotaltracker.com/story/show/145961345)

* Add JRuby 9.1.9.0, Remove JRuby 9.1.8.0
  (https://www.pivotaltracker.com/story/show/145548597)

* Change default ruby version from 2.3.4 to 2.4.1
  (https://www.pivotaltracker.com/story/show/143721855)

v1.6.39 May 12, 2017
=====================

* Add yarn 0.24.4, remove yarn 0.23.4
  (https://www.pivotaltracker.com/story/show/145364383)
  (https://www.pivotaltracker.com/story/show/145350573)

* Add EOL links to ruby buildpack
  (https://www.pivotaltracker.com/story/show/144943203)

* Reference new windows gemfile docs
  (https://www.pivotaltracker.com/story/show/141699203)

* Host openjdk in buildpacks bucket
  (https://www.pivotaltracker.com/story/show/145198585)

* Use '_' instead of '-' in .profile.d script names
  (https://www.pivotaltracker.com/story/show/144964891)

v1.6.38 May 03, 2017
=====================

* Add node 4.8.3 and 6.10.3, remove node 6.10.2 and 4.8.2
  (https://www.pivotaltracker.com/story/show/144725819)
  (https://www.pivotaltracker.com/story/show/144719795)

* Add yarn 0.23.4, remove yarn 0.23.2
  (https://www.pivotaltracker.com/story/show/144725823)
  (https://www.pivotaltracker.com/story/show/144440647)

* Add Add openjdk 1.8.0_131, remove openjdk 1.8.0_121
  (https://www.pivotaltracker.com/story/show/144221517)

* Spilt compile into supply and finalize
  - allows buildpack to use dependencies supplied by previous buildpacks
  - Move install directories for bundler, ruby, node, yarn, + jvm to
  dep_dir
  - clean up some unused code (e.g. only mattered for ancient versions of
  ruby, only applied to heroku)
  (https://www.pivotaltracker.com/story/show/142852033)

v1.6.37 Apr 04, 2017
=====================

* Add node 4.8.2, remove node 4.8.1
  (https://www.pivotaltracker.com/story/show/143029841)

* Add node 6.10.2, remove node 6.10.1
  (https://www.pivotaltracker.com/story/show/143029841)

* Add deprecation dates for ruby 2.1.x
  See: https://www.ruby-lang.org/en/news/2017/04/01/support-of-ruby-2-1-has-ended/

* Add ruby 2.3.4, remove 2.3.2
  (https://www.pivotaltracker.com/story/show/142590541)

* Add ruby 2.2.7, remove 2.2.5
  (https://www.pivotaltracker.com/story/show/142579565)

* Add yarn 0.22.0, remove yarn 0.21.3

v1.6.36 Mar 23, 2017
=====================

* Add ruby 2.4.1
  (https://www.pivotaltracker.com/story/show/142155613)

* Add node 4.8.1, remove node 4.8.0
  (https://www.pivotaltracker.com/story/show/142185261)

* Add jruby 9.1.8.0, remove jruby 9.1.7.0
  (https://www.pivotaltracker.com/story/show/141046145)

* Add bundler 1.14.6, remove bundler 1.14.5
  (https://www.pivotaltracker.com/story/show/141055921)

* Fail staging if unable to write .profile.d script
  (https://www.pivotaltracker.com/story/show/141616657)

* Buildpack can use dependencies provided by supply scripts
  (https://www.pivotaltracker.com/story/show/141616657)

* Use nodejs 6.x for rails 5.1 and above, continue using nodejs 4.x for other execjs apps
  - Make When node is required install npm as well
  - Add node 6.10.1
  (https://www.pivotaltracker.com/story/show/141167599)
  (https://www.pivotaltracker.com/story/show/141165751)
  (https://www.pivotaltracker.com/story/show/142185261)

* Use pessimistic locking on Ruby version in Gemfile
  - Change ruby version warning to include pessimistic versioning suggestion
  (https://www.pivotaltracker.com/story/show/140770891)
  (https://www.pivotaltracker.com/story/show/141518629)

* Changes behaviour of ruby version download by setting jruby patchlevel to be not significant
  (https://www.pivotaltracker.com/story/show/140663631)

v1.6.35 Feb 27, 2017
=====================

* Add "retry" flag to bundler
  (https://www.pivotaltracker.com/story/show/140511461)

* Add node 4.8.0, remove node 4.7.3
  (https://www.pivotaltracker.com/story/show/140373175)

* Add bundler 1.14.5, remove bundler 1.14.3
  (https://www.pivotaltracker.com/story/show/140373173)

v1.6.34 Feb 07, 2017
=====================

* Add EOL dates for jruby, openjdk and node
  (https://www.pivotaltracker.com/story/show/137374307)

* Add node 4.7.3, remove node 4.7.2
  (https://www.pivotaltracker.com/story/show/138773607)

* Remove unlicensed external dependencies: rails_log_stdout and rails3_serve_static_assets
  (https://www.pivotaltracker.com/story/show/138644499)

v1.6.33 Jan 23, 2017
=====================

* Add bundler 1.14.2, remove bundler 1.13.7
  (https://www.pivotaltracker.com/story/show/138119911)

* Add jruby 9.1.7.0, remove jruby 9.1.5.0
  (https://www.pivotaltracker.com/story/show/137476393)

* Add openjdk 1.8.0_121, remove openjdk 1.8.0_111
  (https://www.pivotaltracker.com/story/show/137883043)

v1.6.32 Jan 10, 2017
=====================

* Add warning if downloaded dependency is not the latest patch version for a
given major and minor version
  (https://www.pivotaltracker.com/story/show/134863437)

* Add new version warning to Ruby buildpack
  (https://www.pivotaltracker.com/story/show/135234395)

* Add bundler 1.13.7, remove bundler 1.13.6
  (https://www.pivotaltracker.com/story/show/136650377)

* Add ruby 2.4.0
  (https://www.pivotaltracker.com/story/show/136620759)

* Add node 4.7.2, remove node 4.7.0
  (https://www.pivotaltracker.com/story/show/137135283)
  (https://www.pivotaltracker.com/story/show/136994135)

v1.6.30 Dec 19, 2016
=====================

* Add jruby 9.1.5.0, remove jruby 9.1.2.0
  (https://www.pivotaltracker.com/story/show/129904651)

* Add node 4.7.0, remove node 4.6.2
  (https://www.pivotaltracker.com/story/show/135648535)

v1.6.29 Dec 06, 2016
=====================

* Add ruby 2.1.10, remove ruby 2.1.8

* Add ruby 2.2.6, remove ruby 2.2.4
  (https://www.pivotaltracker.com/story/show/134340425)

* Add ruby 2.3.2 and 2.3.3, remove ruby 2.3.1
  (https://www.pivotaltracker.com/story/show/134330017)
  (https://www.pivotaltracker.com/story/show/134696699)

* Rebuild and change path for ruby, jruby, bundler, node binaries and
  rails patching code
  - We identified a potential, but unlikely, attack vector in our continuous
    integration system. Our own auditing strongly suggests that this attack
    vector was not taken advantage of. However, out of an abundance of caution,
    we are rebuilding all buildpack dependencies that we maintain.

v1.6.28 Nov 09, 2016
=====================

* Add node 4.6.2, remove node 4.6.1
  (https://www.pivotaltracker.com/story/show/133955125)

* Add bundler 1.13.6, remove bundler 1.13.5
  (https://www.pivotaltracker.com/story/show/132957609)

* Add openjdk 1.8.0_111, remove openjdk 1.8.0_101
  (https://www.pivotaltracker.com/story/show/132711731)

* Ensure all downloaded binaries have checksums verified
  (https://www.pivotaltracker.com/story/show/128099189)

v1.6.27 Oct 18, 2016
=====================

* Add node 4.6.1, remove node 4.6.0
  (https://www.pivotaltracker.com/story/show/132686391)

* Add bundler 1.13.5, remove bundler 1.13.1
  (https://www.pivotaltracker.com/story/show/132366579)

v1.6.26 Sep 28, 2016
=====================

* Address USN-3087-1: OpenSSL vulnerabilities by updating node.
  The new version of node included in this buildpack was built
  against the patched version of OpenSSL
  (https://www.pivotaltracker.com/story/show/130945067)

* Add node 4.6.0, remove node 4.5.0
  (https://www.pivotaltracker.com/story/show/131225127)

v1.6.25 Sep 19, 2016
=====================

* Remove vendored libyaml
  (https://www.pivotaltracker.com/story/show/130619237)

* Add bundler 1.13.1, remove bundler 1.12.5
  (https://www.pivotaltracker.com/story/show/130298183)

v1.6.24 Sep 08, 2016
=====================

* Remove jruby-1.7.25, add jruby-1.7.26
  (https://www.pivotaltracker.com/story/show/129371937)

* Remove large variety of heroku references in staging output
  (https://www.pivotaltracker.com/story/show/127931269)

v1.6.23 Aug 31, 2016
=====================

* Fix crash in staging when Gemfile contains a gemspec with a relative path
  (https://www.pivotaltracker.com/story/show/129458773)

* Fix md5 checksum for OpenJDK 1.8 due to rebuild
  (https://www.pivotaltracker.com/story/show/129462209)

v1.6.22 Aug 25, 2016
=====================

* Add node 4.5.0, remove node 4.4.7
  (https://www.pivotaltracker.com/story/show/128431641)

* Ruby runtime selection respects `BUNDLE_GEMFILE` environment variable
  (https://www.pivotaltracker.com/story/show/128974739)

v1.6.21 Aug 11, 2016
=====================

* Redact credentials from URLs in a cached buildpack's output
  (https://www.pivotaltracker.com/story/show/127357631)

* Update buildpack-packager to 2.3.3
  (https://www.pivotaltracker.com/story/show/127357631)

* Redact credentials from URLs in an uncached buildpack's output
  (https://www.pivotaltracker.com/story/show/126514693)

* Add default_versions support to buildpack
  (https://www.pivotaltracker.com/story/show/126394819)

* Add node 4.4.7, remove node 4.4.4
  (https://www.pivotaltracker.com/story/show/123264921)

* Download openjdk from java-buildpack.cloudfoundry.org
  (https://www.pivotaltracker.com/story/show/126972537)

* Add openjdk 1.8.0_101, remove 1.8.0_91
  (https://www.pivotaltracker.com/story/show/126661389)

* The default domain for buildpack dependencies is now buildpacks.cloudfoundry.org
  (https://www.pivotaltracker.com/story/show/121757949)

v1.6.20 Jul 14, 2016
=====================

* Modify RubySemverVersion to use Bundler DSL to read file
  (https://www.pivotaltracker.com/story/show/121730559)


v1.6.19 Jun 08, 2016
=====================

* Add jruby 9.1.2.0, remove jruby 9.1.0.0
  (https://www.pivotaltracker.com/story/show/120448043)

* Correctly handle constants in Gemfile during ruby version check
  (https://www.pivotaltracker.com/story/show/120409927)

* Update bundler to 1.12.5
  (https://www.pivotaltracker.com/story/show/120316237)

v1.6.18 May 11, 2016
=====================

* Make Ruby 2.3.x the default version of Ruby
  (https://www.pivotaltracker.com/story/show/119010685)

* Update node to v4.4.4
  (https://www.pivotaltracker.com/story/show/118779505)

* Ruby buildpack supports version operators when specifying a `ruby` in the `Gemfile`
  (https://www.pivotaltracker.com/story/show/106117082)

* Update bundler 1.11.2 -> 1.12.3
  (https://www.pivotaltracker.com/story/show/119185545)

* Add ruby-2.2.3-jruby-9.1.0.0, remove ruby-2.2.3-jruby-9.0.5.0
  (https://www.pivotaltracker.com/story/show/118847051)

v1.6.17 Apr 28, 2016
=====================

* Make ruby 2.2.5 the default ruby version
  (https://www.pivotaltracker.com/story/show/118363433)

* Add ruby 2.3.1
  (https://www.pivotaltracker.com/story/show/118323233)

* Add ruby 2.2.5, remove ruby 2.2.3
  (https://www.pivotaltracker.com/story/show/118363433)

* Add openjdk 1.8.0_91, remove openjdk 1.8.0_77
  (https://www.pivotaltracker.com/story/show/118006413)

* Add openjdk 1.8.0_91, remove openjdk 1.8.0_77
  (https://www.pivotaltracker.com/story/show/118006413)

v1.6.16 Apr 15, 2016
=====================

* Add jruby from 1.7.25, remove jruby 1.7.24
  (https://www.pivotaltracker.com/story/show/117647027)

* Fix checksum for OpenJDK due to rebuild
  (https://www.pivotaltracker.com/story/show/117700771)

v1.6.15 Apr 06, 2016
=====================

* Remove non-CF specific Procfile and default web server warning
  (https://www.pivotaltracker.com/story/show/113193737)

* Add openjdk 1.8.0_77, remove openjdk 1.8.0_73
  (https://www.pivotaltracker.com/story/show/116890851)

* Add ruby 2.1.9, remove ruby 2.1.7
  (https://www.pivotaltracker.com/story/show/116842687)

v1.6.14 Mar 02, 2016
=====================

* Remove ruby 2.0.0
  (https://www.pivotaltracker.com/story/show/114681287)

* Upgrade bundler to 1.11.2
  (https://www.pivotaltracker.com/story/show/113263389)

v1.6.13 Feb 08, 2016
=====================

* Update jruby to 1.7.24 and 9.0.5.0, dropped 1.7.23 and 9.0.4.0
  (https://www.pivotaltracker.com/story/show/112073931)
  (https://www.pivotaltracker.com/story/show/112523589)

* Update openjdk to 1.8.0_73, dropped 1.8.0_65
  (https://www.pivotaltracker.com/story/show/113292605)

* Change default ruby to 2.2.4

* Instruct curl to follow redirects.

v1.6.12 Dec 30, 2015
=====================

* add Ruby 2.3.0
  (https://www.pivotaltracker.com/story/show/110759512)


v1.6.11 Dec 17, 2015
=====================

* Added Ruby 2.2.4, 2.1.8, 2.0.0p648, Dropped 2.2.2, 2.1.6, 2.0.0p647
  (https://www.pivotaltracker.com/story/show/110307648)

* Removed manifest-including-unsupported
  (https://www.pivotaltracker.com/story/show/109537822)

v1.6.10 Dec 09, 2015
=====================

* Add support for JRuby 1.7.23 (Remove support for JRuby 1.7.22)
  (https://www.pivotaltracker.com/story/show/109357572)


v1.6.9 Nov 16, 2015
====================

* Add support for JRuby 9.0.4.0 (Remove support for JRuby 9.0.3.0)
  (https://www.pivotaltracker.com/story/show/108125524)
    
* Developers should be given detailed, helpful instructions when they attempt
  to stage an application whose dependency is not found in the manifest.
  (https://www.pivotaltracker.com/story/show/107939104)
    
* Replace `JAVA_TOOL_OPTIONS` with `JAVA_MEM` to avoid JRuby overriding
  (https://github.com/heroku/heroku-buildpack-ruby/commit/694c3039e710778d6286989ba6a006fd582b88c1)


v1.6.8 Nov 03, 2015
====================

* Add support for JRuby 9.0.3.0 (Removes support for JRuby 9.0.1.0)
  (https://www.pivotaltracker.com/story/show/106242058)
  (https://www.pivotaltracker.com/story/show/106234536)

* Update OpenJDK to 1.8.0_65.
  (https://www.pivotaltracker.com/story/show/106836266)


v1.6.7 Sep 04, 2015
====================


* Add support for jruby 9.0.1.0 (Removes support for jruby 9.0.0.0)
* Removing support for jruby 1.7.21
  (https://www.pivotaltracker.com/story/show/102606534)

v1.6.6 Aug 28, 2015
====================

* Add support for jruby 1.7.22
  (https://www.pivotaltracker.com/story/show/102073316)

v1.6.5 Aug 21, 2015
====================

* Change default Ruby version to '2.2.3'
  (https://www.pivotaltracker.com/story/show/101779882)

v1.6.4 Aug 19, 2015
===================

* Add support for Ruby 2.1.7 and 2.0.0-p647, which addresses CVE-2015-3900.
  Remove support for Ruby 2.1.5 and 2.0.0-p645.
  (https://www.pivotaltracker.com/story/show/101589968)


v1.6.3 Aug 19, 2015
===================

* Add support for Ruby 2.2.3, which addresses CVE-2015-3900
  Remove support for Ruby 2.2.1.
  (https://www.pivotaltracker.com/story/show/101589968)

* `bin/detect` emits the buildpack version
  (https://www.pivotaltracker.com/story/show/100757820)


v1.6.2 Jul 30, 2015
===================

* Update to JRuby 9.0.0.0 (final)
  - Add 9.0.0.0
  - Remove 9.0.0.0.rc2

* Update openjdk to 1.8.0_51 ("8u51")
  This version of openjdk 8 addresses some severe CVEs, which are enumerated here:
  http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html#AppendixJAVA


v1.6.1 Jul 21, 2015
====================

* Fix issues with the 'including unsupported' manifest
  - Fix incorrect md5 checksum for node version 0.12.7
  - Remove merge conflict annotations

v1.6.0 Jul 20, 2015
====================

* Include CF built binaries
  (https://www.pivotaltracker.com/story/show/97136960)

v1.5.2 Jul 13, 2015
====================

* Update 1.7.* jrubies to 1.7.21 in response to CVE-2015-4020
  Add support for JRuby 9.0.0.0.rc2
  Remove support for JRuby 9.0.0.0.rc1
  (https://www.pivotaltracker.com/story/show/98856174)

* Add support for node version 0.12.7
  (https://www.pivotaltracker.com/story/show/98855140)

v1.5.1 Jul 10, 2015
====================

* Update error message in the event of deploying this buildpack on
  an unsupported stack
  (https://www.pivotaltracker.com/story/show/98579464)

* Security upgrade to NodeJS 0.12.6
  (https://www.pivotaltracker.com/story/show/98683546)

* Updating to buildpack-packager v2.2.2
  Now supports printing out buildpack dependencies via `buildpack-packager list`
  (https://www.pivotaltracker.com/story/show/98588996)

* Upgrade JRuby 9000 support to rc1
  (https://www.pivotaltracker.com/story/show/97566746)

v1.5.0 Jun 24, 2015
====================

* Remove lucid-specific binaries from manifest.yml
  (https://www.pivotaltracker.com/story/show/96135874)

* Give helpful message on unsupported stacks
  (https://www.pivotaltracker.com/story/show/96590188)

* Use cloudfoundry java team built OpenJdks
  (https://www.pivotaltracker.com/story/show/94123750)

v1.4.2 May 20, 2015
====================

* Merge upstream changes from Heroku up to SHA 4b493f80ed9ea9ae7bf8cd743068fb79e3c8b9a2
	(https://www.pivotaltracker.com/story/show/94986118)

* Add bundler version 1.9.7 to manifest
	(https://www.pivotaltracker.com/story/show/94986118)

v1.4.1 May 08, 2015
====================

* Default Ruby version set to MRI 2.2.2
  (https://www.pivotaltracker.com/story/show/91706560)

* Fixed Ruby 1.8.7 for unsupported manifest
  (https://www.pivotaltracker.com/story/show/93717296)

* Bump buildpack-packager to support custom buildpack manifests.
  (https://www.pivotaltracker.com/story/show/93717296)

v1.4.0 Apr 28, 2015
====================

* Remove many older ruby versions. We currenly support:
	* MRI ruby versions:
		* 2.2.2
		* 2.2.1
		* 2.1.6
		* 2.1.5
		* 2.0.0
	* JRuby verisons:
		* ruby-1.9.3-jruby-1.7.19
		* ruby-2.0.0-jruby-1.7.19
		* ruby-2.2.0-jruby-9.0.0.0.pre1

  (https://www.pivotaltracker.com/story/show/93201508)
  (https://www.pivotaltracker.com/story/show/90697240)
  (https://www.pivotaltracker.com/story/show/90697238)

* Update to latest OpenJDK 1.8
  (https://www.pivotaltracker.com/story/show/90697236)

* Updated to latest node JS
  (https://www.pivotaltracker.com/story/show/90697226)

v1.3.1 Apr 21, 2015
====================

* Update provided MRI ruby versions for CVE-2015-1855 (https://www.pivotaltracker.com/story/show/92437386)
	* 2.0.0p645
	* 2.1.6
	* 2.2.2

* Document Contribution guidelines (https://www.pivotaltracker.com/story/show/92459188)

* Do not use cached dependencies when a running app is restaged on a different rootfs (https://www.pivotaltracker.com/story/show/91630536)

* Merge upstream changes from Heroku up to SHA f349dfc1212ffb329ea73a41b15efac13ba302b8 (https://www.pivotaltracker.com/story/show/90537738)

* Add support for jruby versions (https://www.pivotaltracker.com/story/show/90537738)
	* jruby-1.7.19:
		* ruby-1.8.7
		* ruby-1.9.3
		* ruby-2.0.0
	* jruby-9.0.0.0:
		* ruby-2.2.0

v1.3.0 Mar 17, 2015
====================

* Support cflinuxfs2 stack. This does not include support for 1.8.7 and 1.9.2
  (https://www.pivotaltracker.com/story/show/88174340)
  (https://www.pivotaltracker.com/story/show/90295946)

* Dropped support for Ruby 1.9.2 on lucid64
  (https://www.pivotaltracker.com/story/show/90295946)

* Reference git repos by https in cf.Gemfile
  (https://www.pivotaltracker.com/story/show/90365848)

* Add checksum to `manifest.yml` for all binaries.
  (https://www.pivotaltracker.com/story/show/89503122)

v1.2.1 Jan 27, 2015
====================

* Add Ruby 2.2.0
  (https://www.pivotaltracker.com/story/show/86046576)

* Update documentation for use of buildpack-packager
  (https://www.pivotaltracker.com/story/show/85807806)

* Merge upstream changes
  (https://www.pivotaltracker.com/story/show/86046576)
  * Update Bundler to 1.7
    (https://github.com/heroku/heroku-buildpack-ruby/commit/4d6c831e9ba1c67604c395d20ba153a2752b303b)
  * Fix support for JRuby 9.0.0.0.pre1
    (https://github.com/heroku/heroku-buildpack-ruby/commit/881d794a8f33d102561798f696c049f5178ce60d)
  * set JAVA_TOOL_OPTIONS for compile time JRuby
    (https://github.com/heroku/heroku-buildpack-ruby/commit/380c9aa8626d689b6d0f0bdeaf5b78c999cf7540)

v1.2.0 Dec 15, 2014
====================

* Introduce new offline dependency packaging system
  (https://www.pivotaltracker.com/story/show/82513994)
  (https://www.pivotaltracker.com/story/show/83886038)
	(https://www.pivotaltracker.com/story/show/82972454)

* Introduce new runtime dependency translation system
  (https://www.pivotaltracker.com/story/show/82513994)
  (https://www.pivotaltracker.com/story/show/83483872)
  (https://www.pivotaltracker.com/story/show/83504664)

v1.1.4 Nov 19, 2014
====================

* Add ruby 2.1.4 and 2.1.5

* Update machete instructions in README
  (https://www.pivotaltracker.com/story/show/82692644)

* Test regression around copying the same file to itself
  (https://www.pivotaltracker.com/story/show/81613240)

* Add a regression test for stack env variable
  (https://www.pivotaltracker.com/story/show/82289072)

* Merge upstream changes
  (https://www.pivotaltracker.com/story/show/82765888)
  * Include fix to unbounded cache size
    (https://github.com/heroku/heroku-buildpack-ruby/pull/314)
  * Show full stack trace on all unexpected errors
    (https://github.com/heroku/heroku-buildpack-ruby/commit/b84422c9c74f64aef37bd52966d0165858bf59a1)
  * Suppress backtrace from likely errors
    (https://github.com/heroku/heroku-buildpack-ruby/commit/74cba7c15c64386d85c46035030d46e2a6265b63)

v1.1.3 Oct 21, 2014
====================

* Adds code to resolve fault where Ruby 2.1.3 apps to fail to stage.
  (https://www.pivotaltracker.com/story/show/80934254)

* Adds friendlier error message when apps request unavailable rubies in offline buildpacks.
  (https://www.pivotaltracker.com/story/show/80403676)

* Makes supporting Bash scripts more robust.
  (https://www.pivotaltracker.com/story/show/79735118)

v1.1.2 Oct 07, 2014
====================

* Add Ruby 2.1.2 and 2.1.3 to offline
  (https://www.pivotaltracker.com/story/show/79742234)

* Introduce fix for errors arising from unset STACK variable.
  (https://www.pivotaltracker.com/story/show/78677868)
  (https://www.pivotaltracker.com/story/show/80029582)
  (https://www.pivotaltracker.com/story/show/78290072)

* Print version number of buildpack while compiling
  (https://www.pivotaltracker.com/story/show/78505368)

* Merge from upstream

v1.1.1 Sep 22, 2014
====================

* Update buildpack-packager
  (https://www.pivotaltracker.com/story/show/79126294)

* Merge Heroku upstream changes up to [v127](https://github.com/heroku/heroku-buildpack-ruby/releases/tag/v127). Important changes:
  * Improve RBX support

v1.1.0 Aug 29, 2014
====================

* Fixed libreadline issue.
  (https://www.pivotaltracker.com/story/show/75199948)

* Removes spurious warning "already initialized constant" warning
  (https://www.pivotaltracker.com/story/show/76163642)

* Merges Heroku upstream changes up to [v126](https://github.com/heroku/heroku-buildpack-ruby/releases/tag/v126). Important changes:
  * NodeJS is now a dependency
  * Bundler updated to 1.6.3

v1.0.1 Jul 22, 2014
====================

* Improve documentation and make the README CF specific.
  (https://www.pivotaltracker.com/story/show/69192654)
  (https://www.pivotaltracker.com/story/show/73157440)

* Switch to new Cloud Foundry offline dependency framework
  (https://www.pivotaltracker.com/story/show/73384384)
  (https://www.pivotaltracker.com/story/show/73544396)

  (https://www.pivotaltracker.com/story/show/74053110)
  (https://www.pivotaltracker.com/story/show/73723814)

* Allow apps to specify BUNDLE_GEMFILE environment variable
  (https://www.pivotaltracker.com/story/show/73334472)

* Added vendor/cache to .gitignore

* Use Ruby 2.1.1 for packaging

* Improve version imprinting
  (https://www.pivotaltracker.com/story/show/73158908)

* Fix: Offline mode should not attempt to use public networks
  (https://www.pivotaltracker.com/story/show/73420832)

* Fix: Install 12 factor plugins when the user does not provided it

* Fix: do not ignore bin/ dir in rails 4 apps.

v1.0.0 Jun 17, 2014
===================

* Remove libyaml 0.1.5. It's not used and has a security flaw.

* Modify [the Heroku Ruby buildpack](https://github.com/heroku/heroku-buildpack-ruby) to
  support offline mode.

* Do not download Heroku's pre-cached gems. They are not binary compatible
  with the Cloud Foundry environment.
