need to setup prefix so gem_prelude plays nice
need to setup prefix so gem_prelude plays nice

bwaite-jaroop/heroku-buildpack-ruby,ibmdb/db2rubybuildpack,WilliamDenniss/heroku-buildpack-ruby-imagemagick,shuber/heroku-buildpack-ruby,ibmdb/db2rubybuildpack,diasks2/heroku-buildpack-mecab,jasonlevens/heroku-buildpack-ruby,crdschurch/heroku-buildpack-ruby,davidjrice/heroku-buildpack-couchbase-ruby,bellycard/heroku-buildpack-ruby,cloudControl/buildpack-ruby,dtao/deft-buildpack-ruby,centresource/heroku-buildpack-turbo-sprockets-pmp-ffm,diasks2/heroku-buildpack-mecab,jayshreeanand/heroku-buildpack-ruby,redhotvengeance/heroku-buildpack-deep-thought,ibmdb/db2rubybuildpack,AdStage/heroku-buildpack-ruby,d-reinhold/cf-buildpack-ruby,KoanHealth/heroku-buildpack-marvin-setup,pavgup/heroku-buildpack-ruby-lateslugignore,0x00evil/heroku-buildpack-ruby,anay/buildpack-ruby-with-oracle-jdk,qnyp/heroku-buildpack-ruby-bower,bskyb-commerce/ruby-buildpack,wycats/heroku-buildpack-middleman,ascot21/heroku-buildpack-turbo-sprockets,awebneck/heroku-buildpack-canvas,ekaranto/rails4-bluemix-buildpack,AJamesPhillips/heroku-buildpack-ruby,centresource/heroku-buildpack-turbo-sprockets-pmp-ffm,Scalingo/ruby-buildpack,Jonty/ruby-buildpack,darron/heroku-buildpack-ruby-jekyll,Jonty/ruby-buildpack,recursecenter/heroku-buildpack-ruby,jglascoe/heroku-buildpack-ruby-jekyll,jeremyvdw/heroku-buildpack-ruby-jekyll,reesio/heroku-buildpack-ruby,trumaker/heroku-buildpack-turbo-sprockets,righi/instacart-heroku-buildpack,mperejda/heroku-buildpack-ruby,crdschurch/heroku-buildpack-ruby,pietrop/heroku-buildpack-ruby,heroku/heroku-buildpack-ruby,donnykurnia/heroku-buildpack-ruby,Micka33/heroku-buildpack-ruby-liblua,markaschneider/heroku-buildpack-ruby-ffmpeg-sox,wakermahmud/heroku-buildpack-jekyll,cmaggard/heroku-buildpack-turbo-sprockets,phusion/heroku-buildpack-ruby,musicglue/heroku-buildpack-ruby,ekaranto/rails4-bluemix-buildpack,rhomobile/heroku-buildpack-ruby,cloudn/buildpack-ruby,Numerico/heroku-buildpack-ruby,sky-uk/ruby-buildpack,thirdprestige/heroku-buildpack-ruby,Genius/heroku-buildpack-ruby,pkgr/heroku-buildpack-ruby,fcruxen/ruby-buildpack,derrek/heroku-buildpack-ruby,tenjikinc/heroku-buildpack-ruby,Numerico/heroku-buildpack-ruby,rowanoulton/heroku-buildpack-ruby,dieze/heroku-buildpack-ruby-hooks,guidance-guarantee-programme/heroku-buildpack-princexml-old,gls1/heroku-buildpack-ruby-pdftk,jonasoberschweiber/heroku-buildpack-ruby,jglascoe/heroku-buildpack-ruby-jekyll,cordata/heroku-buildpack-ruby,pilotcreative/heroku-buildpack-ruby,jonasoberschweiber/heroku-buildpack-ruby,Numerico/heroku-buildpack-ruby,anay/buildpack-ruby-with-oracle-jdk,meskyanichi/heroku-buildpack-middleman,beydogan/ruby-buildpack,cloudControl/buildpack-ruby,ndbroadbent/heroku-buildpack-turbo-sprockets,teodor-pripoae/heroku-buildpack-ruby,hpcloud/ruby-buildpack,iamjarvo/ruby-buildpack,leonardykris/mos-ruby-buildpack,zunda/heroku-buildpack-ruby,ericboehs/heroku-buildpack-ruby,fcruxen/ruby-buildpack,sky-uk/help-heroku-buildpack,rhomobile/heroku-buildpack-ruby,dlorson/gentle-buildpack,instacart/heroku-buildpack-ruby,schu/buildpack-testing,jcamenisch/heroku-buildpack-rgeo,tpope/heroku-buildpack-ruby-tpope,Dim25/heroku-buildpack-ruby-GSL,blueapron/heroku-buildpack-ruby,firmhouse/heroku-buildpack-ruby-freetds,makifund/heroku-buildpack-ruby,moneyadviceservice/heroku-buildpack-ruby-bowndler,engineyard/heroku-buildpack-ruby,hellojustin/heroku-buildpack-custom-ruby,pavgup/heroku-buildpack-ruby-lateslugignore,ActiveState/heroku-buildpack-ruby,darron/heroku-buildpack-ruby-jekyll,schu/heroku-buildpack-ruby,sgnpa/heroku-buildpack-cas,sanemat/heroku-buildpack-ruby-tachikoma,rvizza/heroku-buildpack-gsl-ruby,stolt45/heroku-buildpack-ruby-with-sqlite3,mrhenry/heroku-buildpack-ruby,aarongray/heroku-buildpack-ruby,barakav/heroku-buildpack-ruby,daltonrenaldo/heroku-buildpack-ruby,AJamesPhillips/heroku-buildpack-ruby,ltrademark/heroku-buildpack-ruby,scottatron/moc-buildpack,rstacruz/heroku-buildpack-middleman,cloudfoundry/ruby-buildpack,dleavitt/heroku-buildpack-ruby,DigitalInnovation/heroku-buildpack-mslabs,erintherad/heroku-buildpack-ruby,scottatron/moc-buildpack,rowanoulton/heroku-buildpack-ruby,hone/heroku-buildpack-ruby,travis-ci/heroku-buildpack-ruby,allomov/fat-free-heroku-buildpack-ruby,cordata/heroku-buildpack-ruby,ekaranto/rails4-bluemix-buildpack,beydogan/ruby-buildpack,thirdprestige/heroku-buildpack-ruby,awebneck/heroku-buildpack-canvas,orenyk/heroku-buildpack-ruby,schu/heroku-buildpack-ruby,tomwolfe/heroku-buildpack-gsl-ruby,icelab/heroku-buildpack-ruby,CPPWind/ruby-buildpack,iamjarvo/ruby-buildpack,amaltson/heroku-buildpack-ruby,erintherad/heroku-buildpack-ruby,joshco/heroku-buildpack-ruby,adaptivelab/heroku-buildpack-adaptivelab-website-2,ericboehs/heroku-buildpack-ruby,tenjikinc/heroku-buildpack-ruby,hatofmonkeys/ruby-testing-buildpack,AdStage/heroku-buildpack-ruby,orenyk/heroku-buildpack-ruby,zunda/heroku-buildpack-ruby,qnyp/heroku-buildpack-ruby-bower,swipesense/heroku-buildpack-ruby,sstelfox/buildpack-ruby,aarongray/heroku-buildpack-ruby,thewebguy/heroku-buildpack-ruby-ffmpeg-libsndfile,trumaker/heroku-buildpack-turbo-sprockets,davidjrice/heroku-buildpack-couchbase-ruby,jumptvs/BP_Ruby,atmos/heroku-buildpack-ruby,pkgr/buildpack-ruby-precise-old,hone/heroku-buildpack-ruby,ericroberts/heroku-buildpack-ruby,dtao/teeny-buildpack,schu/buildpack-testing,takii/heroku-buildpack-ruby,sanemat/heroku-buildpack-ruby-tachikoma,samfrench/heroku-buildpack-ruby,swipesense/heroku-buildpack-ruby,pavgup/heroku-buildpack-ruby-lateslugignore,engineyard/heroku-buildpack-ruby,Nedomas/heroku-buildpack-ruby-minus-node-with-node-paths,hatofmonkeys/ruby-testing-buildpack,DyegoCosta/heroku-buildpack-ruby,adaptivelab/heroku-buildpack-adaptivelab-website-2,stefansundin/heroku-buildpack-ruby,Git-Host/prelang-buildpack,centresource/heroku-buildpack-turbo-sprockets-pmp-ffm,rstacruz/heroku-buildpack-middleman,atmos/heroku-buildpack-ruby,orlando/heroku-buildpack-ruby,DigitalInnovation/heroku-buildpack-mslabs,cloudn/buildpack-ruby,12spokes/heroku-buildpack-ruby-imagemagick,gls1/heroku-buildpack-ruby-pdftk,nicholasmott/heroku-buildpack-octopress,WilliamDenniss/heroku-buildpack-ruby-imagemagick,jgarber/heroku-buildpack-ruby-octopress,sstelfox/buildpack-ruby,brightbytes/heroku-buildpack-ruby-without-assets-precompile,pietrop/heroku-buildpack-ruby,Git-Host/prelang-buildpack,jgarber/heroku-buildpack-ruby-octopress,leonardykris/mos-ruby-buildpack,lemurheavy/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,ltrademark/heroku-buildpack-ruby,progrium/heroku-buildpack-ruby,redhotvengeance/heroku-buildpack-deep-thought,Jonty/ruby-buildpack,ejholmes/heroku-buildpack-middleman,jumptvs/BP_Ruby,lemurheavy/heroku-buildpack-ruby,Dim25/heroku-buildpack-ruby-GSL,heroku/heroku-buildpack-ruby,lemurheavy/heroku-buildpack-ruby,Genius/heroku-buildpack-ruby,jgable/buildpack-ruby-rack-setup-tasks,CPPWind/ruby-buildpack,michaelphines/alexa-nest,mattwalters/heroku-buildpack-ruby,ejholmes/heroku-buildpack-middleman,mattmanning/heroku-buildpack-ruby-jekyll,catalyzeio/buildpack-ruby,andycroll/heroku-buildpack-jekyll,nicholasmott/heroku-buildpack-octopress,ilpoldo/heroku-buildpack-ruby,firmhouse/heroku-buildpack-ruby-freetds,phusion/heroku-buildpack-ruby,atmos/heroku-buildpack-ruby,vhx/heroku-buildpack,dleavitt/heroku-buildpack-ruby,hpcloud/heroku-buildpack-ruby,12spokes/heroku-buildpack-ruby-imagemagick,ablease/custom-buildpack,sky-uk/help-heroku-buildpack,electricobjects/heroku-buildpack-ruby,musicglue/heroku-buildpack-ruby,jumptvs/BP_Ruby,fgbreel/heroku-buildpack-ruby,ekaranto/rails4-bluemix-buildpack,sgnpa/heroku-buildpack-cas,travis-ci/heroku-buildpack-ruby,wolfoo2931/heroku-buildpack-ruby-2a352ae,zidekmat/buildpack-ruby,d-reinhold/cf-buildpack-ruby,icelab/heroku-buildpack-ruby,gbenedict/heroku-buildpack-ruby,bskyb-commerce/help-heroku-buildpack,codykrieger/heroku-buildpack-jekyll,dtao/teeny-buildpack,samfrench/heroku-buildpack-ruby,pcincalifornia/wdc-heroku-buildpack-middleman,wolfoo2931/heroku-buildpack-ruby-2a352ae,dtao/deft-buildpack-ruby,electricobjects/heroku-buildpack-ruby,ablease/custom-buildpack,d-reinhold/cf-buildpack-ruby,AJamesPhillips/heroku-buildpack-ruby,mperejda/heroku-buildpack-ruby,zoomer/heroku-buildpack-ruby-bower,Altoros/ruby-buildpack,daltonrenaldo/heroku-buildpack-ruby,WilliamDenniss/heroku-buildpack-ruby-imagemagick,bskyb-commerce/ruby-buildpack,bskyb-commerce/help-heroku-buildpack,hixi/heroku-buildpack-ruby,bskyb-commerce/ruby-buildpack,KoanHealth/heroku-buildpack-marvin-setup,sky-uk/ruby-buildpack,jcamenisch/heroku-buildpack-rgeo,hatofmonkeys/ruby-testing-buildpack,millie/heroku-buildpack-ruby-with-pdftk,hellojustin/heroku-buildpack-custom-ruby,moneyadviceservice/heroku-buildpack-ruby-bowndler,nicholasmott/heroku-buildpack-octopress,ablease/custom-buildpack,bellycard/heroku-buildpack-ruby,pkgr/buildpack-ruby-precise-old,HYPERHYPER/heroku-buildpack-ruby,phusion/heroku-buildpack-ruby,pcincalifornia/wdc-heroku-buildpack-middleman,nthj/heroku-buildpack-mirror,stefansundin/heroku-buildpack-ruby,firmhouse/heroku-buildpack-ruby-freetds,bwaite-jaroop/heroku-buildpack-ruby,jonseaberg/heroku-buildpack-turbo-sprockets,fcruxen/ruby-buildpack,hausdorff/heroku-buildpack-ruby-jekyll,barakav/heroku-buildpack-ruby,space150/heroku-buildpack-ruby,jonseaberg/heroku-buildpack-turbo-sprockets,recursecenter/heroku-buildpack-ruby,ilpoldo/heroku-buildpack-ruby,takii/heroku-buildpack-ruby,michaelphines/alexa-nest,Nedomas/heroku-buildpack-ruby-minus-node-with-node-paths,mattmanning/heroku-buildpack-ruby-jekyll,iamjarvo/ruby-buildpack,brightbytes/heroku-buildpack-ruby-without-assets-precompile,takii/db2rubybuildpack,codykrieger/heroku-buildpack-jekyll,simonnordberg/heroku-buildpack-ruby,catalyzeio/buildpack-ruby,stolt45/heroku-buildpack-ruby-with-sqlite3,nthj/heroku-buildpack-mirror,CPPWind/ruby-buildpack,Altoros/ruby-buildpack,wycats/heroku-buildpack-middleman,Jonty/ruby-buildpack,derrek/heroku-buildpack-ruby,Altoros/ruby-buildpack,takii/db2rubybuildpack,hausdorff/heroku-buildpack-ruby-jekyll,zidekmat/buildpack-ruby,wakermahmud/heroku-buildpack-jekyll,gls1/heroku-buildpack-ruby-pdftk-new,pilotcreative/heroku-buildpack-ruby,righi/instacart-heroku-buildpack,andycroll/heroku-buildpack-jekyll,Altoros/ruby-buildpack,HYPERHYPER/heroku-buildpack-ruby,AdStage/heroku-buildpack-ruby,ericroberts/heroku-buildpack-ruby,makifund/heroku-buildpack-ruby,lyoshenka/heroku-buildpack-ruby-jekyll,takii/db2rubybuildpack,CPPWind/ruby-buildpack,hixi/heroku-buildpack-ruby,jgarber/heroku-buildpack-ruby-octopress,hpcloud/ruby-buildpack,dlorson/gentle-buildpack,lyoshenka/heroku-buildpack-ruby-jekyll,teodor-pripoae/heroku-buildpack-ruby,cloudn/buildpack-ruby,packetmonkey/heroku-buildpack-ruby,qstream/heroku-buildpack-ruby,sky-uk/ruby-buildpack,Scalingo/ruby-buildpack,pkgr/heroku-buildpack-ruby,hpcloud/ruby-buildpack,hpcloud/heroku-buildpack-ruby,bskyb-commerce/ruby-buildpack,jgable/buildpack-ruby-rack-setup-tasks,jasonlevens/heroku-buildpack-ruby,sanemat/heroku-buildpack-ruby-tachikoma,blueapron/heroku-buildpack-ruby,cmaggard/heroku-buildpack-turbo-sprockets,packetmonkey/heroku-buildpack-ruby,ruby/heroku-buildpack-www-ruby-lang,mintybit/heroku-buildpack-ruby,reesio/heroku-buildpack-ruby,mrhenry/heroku-buildpack-ruby,jeremyvdw/heroku-buildpack-ruby-jekyll,cloudfoundry/ruby-buildpack,DouglasAllen/heroku-buildpack-ruby,shuber/heroku-buildpack-ruby,mattwalters/heroku-buildpack-ruby,sgnpa/heroku-buildpack-cas,cloudfoundry/ruby-buildpack,tdenovan/heroku-buildpack-ruby,vhx/heroku-buildpack,ChefSteps/heroku-buildpack-ruby,0x00evil/heroku-buildpack-ruby,takii/db2rubybuildpack,joshco/heroku-buildpack-ruby,qstream/heroku-buildpack-ruby,ChefSteps/heroku-buildpack-ruby,ascot21/heroku-buildpack-turbo-sprockets,space150/heroku-buildpack-ruby,orlando/heroku-buildpack-ruby,ablease/custom-buildpack,thirdprestige/heroku-buildpack-ruby,pkgr/buildpack-ruby-precise-old,amaltson/heroku-buildpack-ruby,progrium/heroku-buildpack-ruby,fgbreel/heroku-buildpack-ruby,DyegoCosta/heroku-buildpack-ruby,markaschneider/heroku-buildpack-ruby-ffmpeg-sox,thewebguy/heroku-buildpack-ruby-ffmpeg-libsndfile,davidjrice/heroku-buildpack-couchbase-ruby,tdenovan/heroku-buildpack-ruby,instacart/heroku-buildpack-ruby,meskyanichi/heroku-buildpack-middleman,zoomer/heroku-buildpack-ruby-bower,donnykurnia/heroku-buildpack-ruby,rvizza/heroku-buildpack-gsl-ruby,progrium/heroku-buildpack-ruby,guidance-guarantee-programme/heroku-buildpack-princexml-old,tpope/heroku-buildpack-ruby-tpope,ndbroadbent/heroku-buildpack-turbo-sprockets,allomov/fat-free-heroku-buildpack-ruby,jumptvs/BP_Ruby,tomwolfe/heroku-buildpack-gsl-ruby,iamjarvo/ruby-buildpack,cloudn/buildpack-ruby,cloudfoundry/ruby-buildpack,ActiveState/heroku-buildpack-ruby,sky-uk/ruby-buildpack,simonnordberg/heroku-buildpack-ruby,millie/heroku-buildpack-ruby-with-pdftk,gls1/heroku-buildpack-ruby-pdftk-new,DouglasAllen/heroku-buildpack-ruby,jayshreeanand/heroku-buildpack-ruby,dieze/heroku-buildpack-ruby-hooks,gbenedict/heroku-buildpack-ruby,mintybit/heroku-buildpack-ruby,fcruxen/ruby-buildpack,travis-ci/heroku-buildpack-ruby,hpcloud/ruby-buildpack,Micka33/heroku-buildpack-ruby-liblua