Use $BIN_DIR in hooks.
upgraded distribute to v0.6.36.
fixes pip v1.3.1 installation issue
Merge pull request #83 from aljosa/distribute_version_upgrade

upgraded distribute to v0.6.36.
Merge pull request #73 from incuna/hooks-fix

Use $BIN_DIR in hooks.
Merge branch 'master' of git://github.com/heroku/heroku-buildpack-python
Merge branch 'master' of github.com:dmishe/heroku-buildpack-python