updated tests for new addon
updated tests for new addon

phdezann/heroku-buildpack-scala,shunjikonishi/heroku-buildpack-scala-compiled,Scalingo/scala-buildpack,agideon/heroku-buildpack-scala,shunjikonishi/heroku-buildpack-scala-compiled,KimStebel/heroku-buildpack-scala,phdezann/heroku-buildpack-scala,Javilete/buildpack,KimStebel/heroku-buildpack-scala,heroku/heroku-buildpack-scala,Luze26/heroku-buildpack-scala,hpcloud/heroku-buildpack-scala,heroku/heroku-buildpack-scala,yannickdeturck/heroku-buildpack-scala,hpcloud/heroku-buildpack-scala,Javilete/buildpack,Scalingo/scala-buildpack,yannickdeturck/heroku-buildpack-scala,agideon/heroku-buildpack-scala,Luze26/heroku-buildpack-scala