Working on rans

Added reading of Servifile as a jinja template with a custom lookup() function.
Woohoo - Servi works!

With Berkeley, I did:
servi init
Modify Servifile and berkeley.conf
servi update
servi buildbox
bring up a fresh ubuntu server on dreamhost
... LOTS OF ANNOYING MANUAL STUFF TO GET THE SERVER WORKING THE FIRST TIME...
servi rans prod
servi pushto prod

And it all works!
* Fixed bug with timeit (use context manager for setting log level)
* Cleaned up log level stuff
* Simplified monit
* Moved pvenv dir to /usr/share/penv
So far tested on soccer & berkeley