update changelog
update changelog

andycroll/heroku-buildpack-jekyll,Genius/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,icelab/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,tdenovan/heroku-buildpack-ruby,tenjikinc/heroku-buildpack-ruby,ruby/heroku-buildpack-www-ruby-lang,vhx/heroku-buildpack,donnykurnia/heroku-buildpack-ruby,cordata/heroku-buildpack-ruby,donnykurnia/heroku-buildpack-ruby,jumptvs/BP_Ruby,jayshreeanand/heroku-buildpack-ruby,zunda/heroku-buildpack-ruby,tpope/heroku-buildpack-ruby-tpope,zunda/heroku-buildpack-ruby,stefansundin/heroku-buildpack-ruby,mattmanning/heroku-buildpack-ruby-jekyll,ekaranto/rails4-bluemix-buildpack,ekaranto/rails4-bluemix-buildpack,ericboehs/heroku-buildpack-ruby,Scalingo/ruby-buildpack,zoomer/heroku-buildpack-ruby-bower,ericboehs/heroku-buildpack-ruby,markaschneider/heroku-buildpack-ruby-ffmpeg-sox,moneyadviceservice/heroku-buildpack-ruby-bowndler,musicglue/heroku-buildpack-ruby,heroku/heroku-buildpack-ruby,dleavitt/heroku-buildpack-ruby,fgbreel/heroku-buildpack-ruby,erintherad/heroku-buildpack-ruby,stefansundin/heroku-buildpack-ruby,beydogan/ruby-buildpack,pilotcreative/heroku-buildpack-ruby,musicglue/heroku-buildpack-ruby,pkgr/heroku-buildpack-ruby,zoomer/heroku-buildpack-ruby-bower,takii/heroku-buildpack-ruby,andycroll/heroku-buildpack-jekyll,takii/heroku-buildpack-ruby,moneyadviceservice/heroku-buildpack-ruby-bowndler,markaschneider/heroku-buildpack-ruby-ffmpeg-sox,jonseaberg/heroku-buildpack-turbo-sprockets,jumptvs/BP_Ruby,ekaranto/rails4-bluemix-buildpack,qnyp/heroku-buildpack-ruby-bower,qnyp/heroku-buildpack-ruby-bower,orlando/heroku-buildpack-ruby,electricobjects/heroku-buildpack-ruby,pkgr/heroku-buildpack-ruby,tpope/heroku-buildpack-ruby-tpope,instacart/heroku-buildpack-ruby,electricobjects/heroku-buildpack-ruby,derrek/heroku-buildpack-ruby,ekaranto/rails4-bluemix-buildpack,jumptvs/BP_Ruby,brightbytes/heroku-buildpack-ruby-without-assets-precompile,space150/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,bwaite-jaroop/heroku-buildpack-ruby,derrek/heroku-buildpack-ruby,Dim25/heroku-buildpack-ruby-GSL,tenjikinc/heroku-buildpack-ruby,Dim25/heroku-buildpack-ruby-GSL,schu/buildpack-testing,jgable/buildpack-ruby-rack-setup-tasks,dieze/heroku-buildpack-ruby-hooks,cloudfoundry/ruby-buildpack,jonseaberg/heroku-buildpack-turbo-sprockets,engineyard/heroku-buildpack-ruby,dieze/heroku-buildpack-ruby-hooks,beydogan/ruby-buildpack,erintherad/heroku-buildpack-ruby,jumptvs/BP_Ruby,mattmanning/heroku-buildpack-ruby-jekyll,instacart/heroku-buildpack-ruby,cloudfoundry/ruby-buildpack,fgbreel/heroku-buildpack-ruby,brightbytes/heroku-buildpack-ruby-without-assets-precompile,pilotcreative/heroku-buildpack-ruby,heroku/heroku-buildpack-ruby,icelab/heroku-buildpack-ruby,orlando/heroku-buildpack-ruby,schu/buildpack-testing,jayshreeanand/heroku-buildpack-ruby,orenyk/heroku-buildpack-ruby,makifund/heroku-buildpack-ruby,space150/heroku-buildpack-ruby,Scalingo/ruby-buildpack,jgable/buildpack-ruby-rack-setup-tasks,cordata/heroku-buildpack-ruby,Genius/heroku-buildpack-ruby,vhx/heroku-buildpack,dleavitt/heroku-buildpack-ruby,tdenovan/heroku-buildpack-ruby,makifund/heroku-buildpack-ruby,orenyk/heroku-buildpack-ruby,engineyard/heroku-buildpack-ruby,bwaite-jaroop/heroku-buildpack-ruby