Merge pull request #67 from amaltson/missing-heroku-default-buildpacks

Add missing heroku's default buildpacks

Author: rhy-jot

stack/buildpacks.txt

@@ -3,12 +3,14 @@ https://github.com/heroku/heroku-buildpack-nodejs.git
 https://github.com/heroku/heroku-buildpack-java.git
 https://github.com/heroku/heroku-buildpack-play.git
 https://github.com/heroku/heroku-buildpack-python.git
-https://github.com/CHH/heroku-buildpack-php
+https://github.com/heroku/heroku-buildpack-scala.git
 https://github.com/heroku/heroku-buildpack-clojure.git
+https://github.com/heroku/heroku-buildpack-gradle.git
+https://github.com/heroku/heroku-buildpack-grails.git
+https://github.com/CHH/heroku-buildpack-php.git
 https://github.com/kr/heroku-buildpack-go.git
 https://github.com/oortcloud/heroku-buildpack-meteorite.git
 https://github.com/miyagawa/heroku-buildpack-perl.git
-https://github.com/heroku/heroku-buildpack-scala
 https://github.com/igrigorik/heroku-buildpack-dart.git
 https://github.com/rhy-jot/buildpack-nginx.git
 https://github.com/Kloadut/heroku-buildpack-static-apache.git