Merge pull request #3701 from mboersma/update-buildpacks

Update buildpacks

Author: mboersma

builder/image/slugbuilder/builder/install-buildpacks

@@ -28,15 +28,15 @@ download_buildpack() {
 
 mkdir -p $BUILDPACK_INSTALL_PATH
 
-download_buildpack https://github.com/ddollar/heroku-buildpack-multi.git         6e79094
-download_buildpack https://github.com/heroku/heroku-buildpack-ruby.git           v134
-download_buildpack https://github.com/heroku/heroku-buildpack-nodejs.git         v64
-download_buildpack https://github.com/heroku/heroku-buildpack-java.git           v32
+download_buildpack https://github.com/heroku/heroku-buildpack-multi.git          26fa21a
+download_buildpack https://github.com/heroku/heroku-buildpack-ruby.git           v137
+download_buildpack https://github.com/heroku/heroku-buildpack-nodejs.git         v75
+download_buildpack https://github.com/heroku/heroku-buildpack-java.git           v38
 download_buildpack https://github.com/heroku/heroku-buildpack-gradle.git         v12
-download_buildpack https://github.com/heroku/heroku-buildpack-grails.git         1ef927d
-download_buildpack https://github.com/heroku/heroku-buildpack-play.git           v22
-download_buildpack https://github.com/heroku/heroku-buildpack-python.git         v53
-download_buildpack https://github.com/heroku/heroku-buildpack-php.git            v57
-download_buildpack https://github.com/heroku/heroku-buildpack-clojure.git        v63
-download_buildpack https://github.com/heroku/heroku-buildpack-scala.git          v43
-download_buildpack https://github.com/heroku/heroku-buildpack-go.git             0e20030
+download_buildpack https://github.com/heroku/heroku-buildpack-grails.git         v17
+download_buildpack https://github.com/heroku/heroku-buildpack-play.git           v23
+download_buildpack https://github.com/heroku/heroku-buildpack-python.git         v58
+download_buildpack https://github.com/heroku/heroku-buildpack-php.git            v67
+download_buildpack https://github.com/heroku/heroku-buildpack-clojure.git        v66
+download_buildpack https://github.com/heroku/heroku-buildpack-scala.git          v55
+download_buildpack https://github.com/heroku/heroku-buildpack-go.git             6eeb09f