use BUNDLE_VERSION so we know we're using the right bundler version
use BUNDLE_VERSION so we know we're using the right bundler version

cloudControl/buildpack-ruby,schu/heroku-buildpack-ruby,musicglue/heroku-buildpack-ruby,ilpoldo/heroku-buildpack-ruby,samfrench/heroku-buildpack-ruby,teodor-pripoae/heroku-buildpack-ruby,jgable/buildpack-ruby-rack-setup-tasks,cloudn/buildpack-ruby,pkgr/buildpack-ruby-precise-old,wakermahmud/heroku-buildpack-jekyll,DyegoCosta/heroku-buildpack-ruby,cmaggard/heroku-buildpack-turbo-sprockets,tpope/heroku-buildpack-ruby-tpope,hellojustin/heroku-buildpack-custom-ruby,jonseaberg/heroku-buildpack-turbo-sprockets,hatofmonkeys/ruby-testing-buildpack,jeremyvdw/heroku-buildpack-ruby-jekyll,aarongray/heroku-buildpack-ruby,cloudn/buildpack-ruby,rhomobile/heroku-buildpack-ruby,blueapron/heroku-buildpack-ruby,heroku/heroku-buildpack-ruby,tdenovan/heroku-buildpack-ruby,diasks2/heroku-buildpack-mecab,michaelphines/alexa-nest,pilotcreative/heroku-buildpack-ruby,pietrop/heroku-buildpack-ruby,cloudn/buildpack-ruby,bskyb-commerce/help-heroku-buildpack,stolt45/heroku-buildpack-ruby-with-sqlite3,dlorson/gentle-buildpack,donnykurnia/heroku-buildpack-ruby,gls1/heroku-buildpack-ruby-pdftk-new,sky-uk/ruby-buildpack,Scalingo/ruby-buildpack,shuber/heroku-buildpack-ruby,hpcloud/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,pilotcreative/heroku-buildpack-ruby,phusion/heroku-buildpack-ruby,mattwalters/heroku-buildpack-ruby,rvizza/heroku-buildpack-gsl-ruby,barakav/heroku-buildpack-ruby,ericboehs/heroku-buildpack-ruby,scottatron/moc-buildpack,stefansundin/heroku-buildpack-ruby,fgbreel/heroku-buildpack-ruby,DyegoCosta/heroku-buildpack-ruby,erintherad/heroku-buildpack-ruby,iamjarvo/ruby-buildpack,ltrademark/heroku-buildpack-ruby,cordata/heroku-buildpack-ruby,space150/heroku-buildpack-ruby,orlando/heroku-buildpack-ruby,markaschneider/heroku-buildpack-ruby-ffmpeg-sox,davidjrice/heroku-buildpack-couchbase-ruby,sky-uk/help-heroku-buildpack,Altoros/ruby-buildpack,mintybit/heroku-buildpack-ruby,rowanoulton/heroku-buildpack-ruby,teodor-pripoae/heroku-buildpack-ruby,electricobjects/heroku-buildpack-ruby,Micka33/heroku-buildpack-ruby-liblua,ablease/custom-buildpack,gls1/heroku-buildpack-ruby-pdftk,0x00evil/heroku-buildpack-ruby,markaschneider/heroku-buildpack-ruby-ffmpeg-sox,moneyadviceservice/heroku-buildpack-ruby-bowndler,qstream/heroku-buildpack-ruby,schu/buildpack-testing,trumaker/heroku-buildpack-turbo-sprockets,qnyp/heroku-buildpack-ruby-bower,sstelfox/buildpack-ruby,mattmanning/heroku-buildpack-ruby-jekyll,ndbroadbent/heroku-buildpack-turbo-sprockets,ActiveState/heroku-buildpack-ruby,gls1/heroku-buildpack-ruby-pdftk,ericboehs/heroku-buildpack-ruby,anay/buildpack-ruby-with-oracle-jdk,orenyk/heroku-buildpack-ruby,brightbytes/heroku-buildpack-ruby-without-assets-precompile,orenyk/heroku-buildpack-ruby,catalyzeio/buildpack-ruby,barakav/heroku-buildpack-ruby,jumptvs/BP_Ruby,guidance-guarantee-programme/heroku-buildpack-princexml-old,simonnordberg/heroku-buildpack-ruby,ibmdb/db2rubybuildpack,schu/buildpack-testing,wolfoo2931/heroku-buildpack-ruby-2a352ae,cloudn/buildpack-ruby,travis-ci/heroku-buildpack-ruby,hpcloud/ruby-buildpack,ablease/custom-buildpack,ndbroadbent/heroku-buildpack-turbo-sprockets,hatofmonkeys/ruby-testing-buildpack,cloudfoundry/ruby-buildpack,space150/heroku-buildpack-ruby,dtao/teeny-buildpack,Micka33/heroku-buildpack-ruby-liblua,dtao/deft-buildpack-ruby,instacart/heroku-buildpack-ruby,fgbreel/heroku-buildpack-ruby,ltrademark/heroku-buildpack-ruby,crdschurch/heroku-buildpack-ruby,fcruxen/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,vhx/heroku-buildpack,mrhenry/heroku-buildpack-ruby,CPPWind/ruby-buildpack,takii/heroku-buildpack-ruby,stolt45/heroku-buildpack-ruby-with-sqlite3,dleavitt/heroku-buildpack-ruby,makifund/heroku-buildpack-ruby,donnykurnia/heroku-buildpack-ruby,recursecenter/heroku-buildpack-ruby,reesio/heroku-buildpack-ruby,mperejda/heroku-buildpack-ruby,Altoros/ruby-buildpack,instacart/heroku-buildpack-ruby,iamjarvo/ruby-buildpack,Genius/heroku-buildpack-ruby,bskyb-commerce/ruby-buildpack,mattmanning/heroku-buildpack-ruby-jekyll,makifund/heroku-buildpack-ruby,pkgr/buildpack-ruby-precise-old,fcruxen/ruby-buildpack,bskyb-commerce/ruby-buildpack,iamjarvo/ruby-buildpack,redhotvengeance/heroku-buildpack-deep-thought,dtao/deft-buildpack-ruby,blueapron/heroku-buildpack-ruby,Nedomas/heroku-buildpack-ruby-minus-node-with-node-paths,cordata/heroku-buildpack-ruby,davidjrice/heroku-buildpack-couchbase-ruby,takii/db2rubybuildpack,jonasoberschweiber/heroku-buildpack-ruby,thewebguy/heroku-buildpack-ruby-ffmpeg-libsndfile,ekaranto/rails4-bluemix-buildpack,ibmdb/db2rubybuildpack,davidjrice/heroku-buildpack-couchbase-ruby,tpope/heroku-buildpack-ruby-tpope,mrhenry/heroku-buildpack-ruby,sanemat/heroku-buildpack-ruby-tachikoma,daltonrenaldo/heroku-buildpack-ruby,dtao/teeny-buildpack,hatofmonkeys/ruby-testing-buildpack,gbenedict/heroku-buildpack-ruby,diasks2/heroku-buildpack-mecab,samfrench/heroku-buildpack-ruby,ascot21/heroku-buildpack-turbo-sprockets,electricobjects/heroku-buildpack-ruby,CPPWind/ruby-buildpack,allomov/fat-free-heroku-buildpack-ruby,d-reinhold/cf-buildpack-ruby,takii/db2rubybuildpack,awebneck/heroku-buildpack-canvas,mintybit/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,jasonlevens/heroku-buildpack-ruby,tdenovan/heroku-buildpack-ruby,fcruxen/ruby-buildpack,amaltson/heroku-buildpack-ruby,lyoshenka/heroku-buildpack-ruby-jekyll,CPPWind/ruby-buildpack,DigitalInnovation/heroku-buildpack-mslabs,simonnordberg/heroku-buildpack-ruby,hpcloud/heroku-buildpack-ruby,jonasoberschweiber/heroku-buildpack-ruby,ChefSteps/heroku-buildpack-ruby,ascot21/heroku-buildpack-turbo-sprockets,gbenedict/heroku-buildpack-ruby,engineyard/heroku-buildpack-ruby,ruby/heroku-buildpack-www-ruby-lang,DouglasAllen/heroku-buildpack-ruby,iamjarvo/ruby-buildpack,rowanoulton/heroku-buildpack-ruby,bellycard/heroku-buildpack-ruby,0x00evil/heroku-buildpack-ruby,tomwolfe/heroku-buildpack-gsl-ruby,jumptvs/BP_Ruby,derrek/heroku-buildpack-ruby,takii/db2rubybuildpack,brightbytes/heroku-buildpack-ruby-without-assets-precompile,andycroll/heroku-buildpack-jekyll,wolfoo2931/heroku-buildpack-ruby-2a352ae,Jonty/ruby-buildpack,schu/heroku-buildpack-ruby,catalyzeio/buildpack-ruby,reesio/heroku-buildpack-ruby,recursecenter/heroku-buildpack-ruby,hpcloud/ruby-buildpack,moneyadviceservice/heroku-buildpack-ruby-bowndler,zidekmat/buildpack-ruby,righi/instacart-heroku-buildpack,michaelphines/alexa-nest,ericroberts/heroku-buildpack-ruby,travis-ci/heroku-buildpack-ruby,jayshreeanand/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,orlando/heroku-buildpack-ruby,bwaite-jaroop/heroku-buildpack-ruby,musicglue/heroku-buildpack-ruby,Dim25/heroku-buildpack-ruby-GSL,ChefSteps/heroku-buildpack-ruby,leonardykris/mos-ruby-buildpack,KoanHealth/heroku-buildpack-marvin-setup,pietrop/heroku-buildpack-ruby,beydogan/ruby-buildpack,ablease/custom-buildpack,amaltson/heroku-buildpack-ruby,hixi/heroku-buildpack-ruby,allomov/fat-free-heroku-buildpack-ruby,crdschurch/heroku-buildpack-ruby,bskyb-commerce/ruby-buildpack,packetmonkey/heroku-buildpack-ruby,dieze/heroku-buildpack-ruby-hooks,ActiveState/heroku-buildpack-ruby,trumaker/heroku-buildpack-turbo-sprockets,bskyb-commerce/help-heroku-buildpack,phusion/heroku-buildpack-ruby,jumptvs/BP_Ruby,dleavitt/heroku-buildpack-ruby,jasonlevens/heroku-buildpack-ruby,swipesense/heroku-buildpack-ruby,shuber/heroku-buildpack-ruby,vhx/heroku-buildpack,HYPERHYPER/heroku-buildpack-ruby,guidance-guarantee-programme/heroku-buildpack-princexml-old,Git-Host/prelang-buildpack,ibmdb/db2rubybuildpack,ekaranto/rails4-bluemix-buildpack,sky-uk/ruby-buildpack,cmaggard/heroku-buildpack-turbo-sprockets,qstream/heroku-buildpack-ruby,heroku/heroku-buildpack-ruby,ericroberts/heroku-buildpack-ruby,mperejda/heroku-buildpack-ruby,erintherad/heroku-buildpack-ruby,sky-uk/help-heroku-buildpack,cloudfoundry/ruby-buildpack,andycroll/heroku-buildpack-jekyll,zunda/heroku-buildpack-ruby,Nedomas/heroku-buildpack-ruby-minus-node-with-node-paths,sanemat/heroku-buildpack-ruby-tachikoma,daltonrenaldo/heroku-buildpack-ruby,pkgr/buildpack-ruby-precise-old,rvizza/heroku-buildpack-gsl-ruby,hellojustin/heroku-buildpack-custom-ruby,bskyb-commerce/ruby-buildpack,Altoros/ruby-buildpack,CPPWind/ruby-buildpack,jayshreeanand/heroku-buildpack-ruby,leonardykris/mos-ruby-buildpack,redhotvengeance/heroku-buildpack-deep-thought,dieze/heroku-buildpack-ruby-hooks,anay/buildpack-ruby-with-oracle-jdk,pkgr/heroku-buildpack-ruby,sstelfox/buildpack-ruby,jgable/buildpack-ruby-rack-setup-tasks,phusion/heroku-buildpack-ruby,icelab/heroku-buildpack-ruby,sky-uk/ruby-buildpack,zoomer/heroku-buildpack-ruby-bower,zunda/heroku-buildpack-ruby,codykrieger/heroku-buildpack-jekyll,pkgr/heroku-buildpack-ruby,dlorson/gentle-buildpack,derrek/heroku-buildpack-ruby,tomwolfe/heroku-buildpack-gsl-ruby,d-reinhold/cf-buildpack-ruby,mattwalters/heroku-buildpack-ruby,hixi/heroku-buildpack-ruby,sanemat/heroku-buildpack-ruby-tachikoma,icelab/heroku-buildpack-ruby,gls1/heroku-buildpack-ruby-pdftk-new,zoomer/heroku-buildpack-ruby-bower,qnyp/heroku-buildpack-ruby-bower,Jonty/ruby-buildpack,cloudfoundry/ruby-buildpack,ablease/custom-buildpack,d-reinhold/cf-buildpack-ruby,Jonty/ruby-buildpack,hpcloud/ruby-buildpack,Git-Host/prelang-buildpack,Genius/heroku-buildpack-ruby,sky-uk/ruby-buildpack,jonseaberg/heroku-buildpack-turbo-sprockets,Scalingo/ruby-buildpack,Dim25/heroku-buildpack-ruby-GSL,bwaite-jaroop/heroku-buildpack-ruby,travis-ci/heroku-buildpack-ruby,beydogan/ruby-buildpack,tenjikinc/heroku-buildpack-ruby,rhomobile/heroku-buildpack-ruby,hpcloud/heroku-buildpack-ruby,DigitalInnovation/heroku-buildpack-mslabs,HYPERHYPER/heroku-buildpack-ruby,bellycard/heroku-buildpack-ruby,engineyard/heroku-buildpack-ruby,codykrieger/heroku-buildpack-jekyll,lyoshenka/heroku-buildpack-ruby-jekyll,aarongray/heroku-buildpack-ruby,takii/db2rubybuildpack,jeremyvdw/heroku-buildpack-ruby-jekyll,zidekmat/buildpack-ruby,swipesense/heroku-buildpack-ruby,cloudControl/buildpack-ruby,awebneck/heroku-buildpack-canvas,Altoros/ruby-buildpack,KoanHealth/heroku-buildpack-marvin-setup,wakermahmud/heroku-buildpack-jekyll,scottatron/moc-buildpack,stefansundin/heroku-buildpack-ruby,fcruxen/ruby-buildpack,righi/instacart-heroku-buildpack,jumptvs/BP_Ruby,DouglasAllen/heroku-buildpack-ruby,packetmonkey/heroku-buildpack-ruby,thewebguy/heroku-buildpack-ruby-ffmpeg-libsndfile,ilpoldo/heroku-buildpack-ruby,Jonty/ruby-buildpack,tenjikinc/heroku-buildpack-ruby,takii/heroku-buildpack-ruby