refactorings from @tenderlove
refactorings from @tenderlove

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