update changelog for v8
update changelog for v8

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