bump to v52
bump to v52

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