Moved from SQLite to MySQL

We've used oursql as the connector.

Follow the updated guide on the wiki to setup the database.

Removed the DMF schema as it was hardly serving a purpose.
Setup the database for Travis CI
Replace oursql by mysql-connector-python

oursql depends on cython, both of which were having issues
compiling

The connector package seems to work for the entire team (and Travis)
A subtle change in the test

I'm really not sure as to why this is needed.

It might have something to do with the new connector we're using.