Reverse html/mako for .mako files
When we activate a virtualenv, we also set some for gems

Cause having ruby crap located in a simple to delete place is teh win!
Add tox_env function for python.buildout PATH

This allows us to easily use tox without overriding the default Python
that is included with OS X most of the time.
Run a command forever...

Useful with pserve for developing Pyramid apps:

run_forever 5 pserve --reload config/development.ini