Cache fetched bundler and parsed bundle.
init
Realize the bundle if bundler_path is called before bundle.
Really just one instance of things.
Less magic.
Merge branch 'master' into cache-parsed-bundle
Merge branch 'cache-parsed-bundle' of git://github.com/dpiddy/heroku-buildpack-ruby
update rails 4 copy
as of Rails 4 RC2, don't need to check in binstubsAO
bump v64
update changelog
put binstubs on path and stop symlinking
fix #108, scope bundler bin to build
Merge branch 'master' of git://github.com/heroku/heroku-buildpack-ruby
Merge branch 'master' into production

* master:
  fix #108, scope bundler bin to build
  put binstubs on path and stop symlinking
  update changelog
  bump v64
  as of Rails 4 RC2, don't need to check in binstubsAO
  update rails 4 copy
  Less magic.
  Really just one instance of things.
  Realize the bundle if bundler_path is called before bundle.
  init
  Cache fetched bundler and parsed bundle.