Added virtualenv as phony (otherwise touch virtualenv; make run-fake
won't work), which required some other changes to avoid infinite loop.
Use fork of django-precompiler until can figure out how to actually
it should be configured (or patches merged to mainline).

Added systemtest 001-02 to verify that the non-API entry point (e.g.
web browser url) actually works. All of the tests passed fine even
when the user UI was completely b0rken, ouch.
"pip install ." now successfully installs, so travis should be happy.