Revert "Revert "upgrade to bundler 1.3.2""
Revert "Revert "upgrade to bundler 1.3.2""

This reverts commit 3fc9718e47cff36e30acc4c305994cff75c19f14.

donnykurnia/heroku-buildpack-ruby,pkgr/heroku-buildpack-ruby,Genius/heroku-buildpack-ruby,ascot21/heroku-buildpack-turbo-sprockets,sky-uk/ruby-buildpack,engineyard/heroku-buildpack-ruby,blueapron/heroku-buildpack-ruby,Jonty/ruby-buildpack,jumptvs/BP_Ruby,cordata/heroku-buildpack-ruby,Genius/heroku-buildpack-ruby,derrek/heroku-buildpack-ruby,hpcloud/ruby-buildpack,rhomobile/heroku-buildpack-ruby,jayshreeanand/heroku-buildpack-ruby,makifund/heroku-buildpack-ruby,qnyp/heroku-buildpack-ruby-bower,pilotcreative/heroku-buildpack-ruby,blueapron/heroku-buildpack-ruby,Micka33/heroku-buildpack-ruby-liblua,Scalingo/ruby-buildpack,Scalingo/ruby-buildpack,samfrench/heroku-buildpack-ruby,shuber/heroku-buildpack-ruby,hatofmonkeys/ruby-testing-buildpack,0x00evil/heroku-buildpack-ruby,aarongray/heroku-buildpack-ruby,bskyb-commerce/ruby-buildpack,mperejda/heroku-buildpack-ruby,hpcloud/ruby-buildpack,swipesense/heroku-buildpack-ruby,zunda/heroku-buildpack-ruby,schu/heroku-buildpack-ruby,mattmanning/heroku-buildpack-ruby-jekyll,pkgr/buildpack-ruby-precise-old,KoanHealth/heroku-buildpack-marvin-setup,recursecenter/heroku-buildpack-ruby,jonseaberg/heroku-buildpack-turbo-sprockets,sky-uk/ruby-buildpack,cmaggard/heroku-buildpack-turbo-sprockets,DigitalInnovation/heroku-buildpack-mslabs,HYPERHYPER/heroku-buildpack-ruby,mperejda/heroku-buildpack-ruby,jumptvs/BP_Ruby,swipesense/heroku-buildpack-ruby,ltrademark/heroku-buildpack-ruby,diasks2/heroku-buildpack-mecab,Altoros/ruby-buildpack,AdStage/heroku-buildpack-ruby,lemurheavy/heroku-buildpack-ruby,jonseaberg/heroku-buildpack-turbo-sprockets,cloudControl/buildpack-ruby,anay/buildpack-ruby-with-oracle-jdk,instacart/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,takii/db2rubybuildpack,lemurheavy/heroku-buildpack-ruby,tenjikinc/heroku-buildpack-ruby,lyoshenka/heroku-buildpack-ruby-jekyll,electricobjects/heroku-buildpack-ruby,vhx/heroku-buildpack,takii/heroku-buildpack-ruby,stolt45/heroku-buildpack-ruby-with-sqlite3,codykrieger/heroku-buildpack-jekyll,d-reinhold/cf-buildpack-ruby,hpcloud/heroku-buildpack-ruby,catalyzeio/buildpack-ruby,hpcloud/heroku-buildpack-ruby,mattwalters/heroku-buildpack-ruby,michaelphines/alexa-nest,jgable/buildpack-ruby-rack-setup-tasks,dtao/deft-buildpack-ruby,dtao/teeny-buildpack,cloudfoundry/ruby-buildpack,hpcloud/ruby-buildpack,Nedomas/heroku-buildpack-ruby-minus-node-with-node-paths,bskyb-commerce/ruby-buildpack,DyegoCosta/heroku-buildpack-ruby,vhx/heroku-buildpack,beydogan/ruby-buildpack,jumptvs/BP_Ruby,dtao/deft-buildpack-ruby,engineyard/heroku-buildpack-ruby,codykrieger/heroku-buildpack-jekyll,ilpoldo/heroku-buildpack-ruby,cloudn/buildpack-ruby,zidekmat/buildpack-ruby,takii/db2rubybuildpack,zoomer/heroku-buildpack-ruby-bower,schu/buildpack-testing,leonardykris/mos-ruby-buildpack,CPPWind/ruby-buildpack,fcruxen/ruby-buildpack,ilpoldo/heroku-buildpack-ruby,rvizza/heroku-buildpack-gsl-ruby,jasonlevens/heroku-buildpack-ruby,tpope/heroku-buildpack-ruby-tpope,ablease/custom-buildpack,fcruxen/ruby-buildpack,centresource/heroku-buildpack-turbo-sprockets-pmp-ffm,fgbreel/heroku-buildpack-ruby,barakav/heroku-buildpack-ruby,tomwolfe/heroku-buildpack-gsl-ruby,barakav/heroku-buildpack-ruby,mrhenry/heroku-buildpack-ruby,aarongray/heroku-buildpack-ruby,sstelfox/buildpack-ruby,dlorson/gentle-buildpack,recursecenter/heroku-buildpack-ruby,gls1/heroku-buildpack-ruby-pdftk,samfrench/heroku-buildpack-ruby,Nedomas/heroku-buildpack-ruby-minus-node-with-node-paths,mattwalters/heroku-buildpack-ruby,hatofmonkeys/ruby-testing-buildpack,stefansundin/heroku-buildpack-ruby,guidance-guarantee-programme/heroku-buildpack-princexml-old,AdStage/heroku-buildpack-ruby,scottatron/moc-buildpack,rowanoulton/heroku-buildpack-ruby,phusion/heroku-buildpack-ruby,iamjarvo/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,moneyadviceservice/heroku-buildpack-ruby-bowndler,ActiveState/heroku-buildpack-ruby,andycroll/heroku-buildpack-jekyll,ascot21/heroku-buildpack-turbo-sprockets,WilliamDenniss/heroku-buildpack-ruby-imagemagick,progrium/heroku-buildpack-ruby,ekaranto/rails4-bluemix-buildpack,rhomobile/heroku-buildpack-ruby,fcruxen/ruby-buildpack,redhotvengeance/heroku-buildpack-deep-thought,bskyb-commerce/ruby-buildpack,gbenedict/heroku-buildpack-ruby,jonasoberschweiber/heroku-buildpack-ruby,sanemat/heroku-buildpack-ruby-tachikoma,amaltson/heroku-buildpack-ruby,diasks2/heroku-buildpack-mecab,WilliamDenniss/heroku-buildpack-ruby-imagemagick,tdenovan/heroku-buildpack-ruby,orenyk/heroku-buildpack-ruby,Altoros/ruby-buildpack,iamjarvo/ruby-buildpack,crdschurch/heroku-buildpack-ruby,ericroberts/heroku-buildpack-ruby,musicglue/heroku-buildpack-ruby,trumaker/heroku-buildpack-turbo-sprockets,progrium/heroku-buildpack-ruby,ActiveState/heroku-buildpack-ruby,ekaranto/rails4-bluemix-buildpack,0x00evil/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,qnyp/heroku-buildpack-ruby-bower,allomov/fat-free-heroku-buildpack-ruby,daltonrenaldo/heroku-buildpack-ruby,thewebguy/heroku-buildpack-ruby-ffmpeg-libsndfile,erintherad/h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