Add a plugin which targets numeric responses

This plugin penalizes messages with only numbers
Fix inheritence error and return value

It shouldn't inherit from BaseWrapper, but merely object.
It should return None instead of 0.5 so it will have no effect on the average.
Add a nonsense filter

Scrubs messages with no words which appear in the database.
Remove debuggin info
Only don't train on control data but do test on it
Ignore None scores

Now plugins can neglect to return any spam score.
Add nonsense filter to the setup.py
Ignore auto generated files
Remove debugging data

Forgot this.
Remove timing data
Cleanup - old timing data, old print statements