Add ruby-2.2.3 to the unsupported manifest.
Add ruby-2.2.3 to the unsupported manifest.

ekaranto/rails4-bluemix-buildpack,fcruxen/ruby-buildpack,jumptvs/BP_Ruby,fcruxen/ruby-buildpack,cloudfoundry/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,hpcloud/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,jumptvs/BP_Ruby,iamjarvo/ruby-buildpack,jumptvs/BP_Ruby,Jonty/ruby-buildpack,Jonty/ruby-buildpack,cloudfoundry/ruby-buildpack,iamjarvo/ruby-buildpack,hpcloud/ruby-buildpack,hpcloud/ruby-buildpack,cloudfoundry/ruby-buildpack,cloudfoundry/ruby-buildpack,Jonty/ruby-buildpack,Jonty/ruby-buildpack,hpcloud/ruby-buildpack,cloudfoundry/ruby-buildpack,fcruxen/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,iamjarvo/ruby-buildpack,iamjarvo/ruby-buildpack,jumptvs/BP_Ruby,fcruxen/ruby-buildpack