Some tweaks for testing.
Fixed case when some parts of an evtable wouldn't color correctly. Resolves #623.
Added Typeclass-aware querysets.
Broke DbHolder out into module root for subclassing.
Permit checking of different lock types from one lock string.
Added the ability to clear tags by category.
Added a few hooks to the default building commands.
Made test running environment more robust and consistent.
Added module for collab with default settings.
Collab Typeclasses added.
Collab permissions checking functions added.
Collab commands added.