Merge pull request #4707 from mboersma/update-buildpacks

Update buildpacks

Author: mboersma

builder/rootfs/usr/local/src/slugbuilder/builder/install-buildpacks

@@ -29,14 +29,14 @@ download_buildpack() {
 mkdir -p $BUILDPACK_INSTALL_PATH
 
 download_buildpack https://github.com/heroku/heroku-buildpack-multi.git          26fa21a
-download_buildpack https://github.com/heroku/heroku-buildpack-ruby.git           v138
-download_buildpack https://github.com/heroku/heroku-buildpack-nodejs.git         v80
-download_buildpack https://github.com/heroku/heroku-buildpack-java.git           v39
+download_buildpack https://github.com/heroku/heroku-buildpack-ruby.git           v140
+download_buildpack https://github.com/heroku/heroku-buildpack-nodejs.git         v86
+download_buildpack https://github.com/heroku/heroku-buildpack-java.git           v40
 download_buildpack https://github.com/heroku/heroku-buildpack-gradle.git         v12
 download_buildpack https://github.com/heroku/heroku-buildpack-grails.git         v19
 download_buildpack https://github.com/heroku/heroku-buildpack-play.git           v24
-download_buildpack https://github.com/heroku/heroku-buildpack-python.git         v62
-download_buildpack https://github.com/heroku/heroku-buildpack-php.git            v75
-download_buildpack https://github.com/heroku/heroku-buildpack-clojure.git        v68
-download_buildpack https://github.com/heroku/heroku-buildpack-scala.git          v60
-download_buildpack https://github.com/heroku/heroku-buildpack-go.git             v16
+download_buildpack https://github.com/heroku/heroku-buildpack-python.git         v70
+download_buildpack https://github.com/heroku/heroku-buildpack-php.git            v82
+download_buildpack https://github.com/heroku/heroku-buildpack-clojure.git        v70
+download_buildpack https://github.com/heroku/heroku-buildpack-scala.git          v63
+download_buildpack https://github.com/heroku/heroku-buildpack-go.git             v18