adding github issue template [#115892743]
adding github issue template [#115892743]

cloudfoundry/ruby-buildpack,jumptvs/BP_Ruby,cloudfoundry/ruby-buildpack,jumptvs/BP_Ruby,cloudfoundry/ruby-buildpack,jumptvs/BP_Ruby,ekaranto/rails4-bluemix-buildpack,cloudfoundry/ruby-buildpack,ekaranto/rails4-bluemix-buildpack,jumptvs/BP_Ruby,ekaranto/rails4-bluemix-buildpack,cloudfoundry/ruby-buildpack,ekaranto/rails4-bluemix-buildpack