Exclude files and directories not needed for the buildpack package
Exclude files and directories not needed for the buildpack package

cloudfoundry/ruby-buildpack,sky-uk/ruby-buildpack,cloudfoundry/ruby-buildpack,takii/db2rubybuildpack,fcruxen/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,cloudfoundry/ruby-buildpack,takii/db2rubybuildpack,hpcloud/ruby-buildpack,takii/db2rubybuildpack,ekaranto/rails4-bluemix-buildpack,bskyb-commerce/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,Altoros/ruby-buildpack,cloudn/buildpack-ruby,cloudn/buildpack-ruby,ablease/custom-buildpack,cloudn/buildpack-ruby,iamjarvo/ruby-buildpack,ablease/custom-buildpack,Scalingo/ruby-buildpack,cloudfoundry/ruby-buildpack,Jonty/ruby-buildpack,hpcloud/ruby-buildpack,d-reinhold/cf-buildpack-ruby,CPPWind/ruby-buildpack,sky-uk/ruby-buildpack,cloudfoundry/ruby-buildpack,hatofmonkeys/ruby-testing-buildpack,ibmdb/db2rubybuildpack,bskyb-commerce/ruby-buildpack,jumptvs/BP_Ruby,ablease/custom-buildpack,Scalingo/ruby-buildpack,fcruxen/ruby-buildpack,cloudn/buildpack-ruby,jumptvs/BP_Ruby,fcruxen/ruby-buildpack,hpcloud/ruby-buildpack,sky-uk/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,Altoros/ruby-buildpack,sky-uk/ruby-buildpack,fcruxen/ruby-buildpack,Altoros/ruby-buildpack,Jonty/ruby-buildpack,jumptvs/BP_Ruby,iamjarvo/ruby-buildpack,takii/db2rubybuildpack,bskyb-commerce/ruby-buildpack,jumptvs/BP_Ruby,Jonty/ruby-buildpack,ablease/custom-buildpack,hpcloud/ruby-buildpack,Altoros/ruby-buildpack,iamjarvo/ruby-buildpack,hatofmonkeys/ruby-testing-buildpack,CPPWind/ruby-buildpack,bskyb-commerce/ruby-buildpack,CPPWind/ruby-buildpack,iamjarvo/ruby-buildpack,ibmdb/db2rubybuildpack,Jonty/ruby-buildpack,d-reinhold/cf-buildpack-ruby,hatofmonkeys/ruby-testing-buildpack,d-reinhold/cf-buildpack-ruby,CPPWind/ruby-buildpack,ibmdb/db2rubybuildpack