Fix path ordering; expose custom JVM to Leiningen.
Fix path ordering; expose custom JVM to Leiningen.

jkutner/heroku-buildpack-lein,cedricpineau/heroku-buildpack-clojure-phantomjs,mstine/heroku-buildpack-clojure,heroku/heroku-buildpack-clojure,heroku/heroku-buildpack-clojure,nvbn/heroku-buildpack-clojure,cloudControl/buildpack-clojure