Making less crazy code

Moving from using a serpentine of intents and activities for user events.
Nick completion now native; intent driven activities that exist to pick users are now replaced with AlertDialog
Redeux the holo thing

The Holo theme now is embedded nicer. It won't look perfect in all
situations but should look good enough in most situations.

Note, that I'm considering making this a 2.3+ app, meaning the minimum
SDK version would go up to 10. Pondering this idea, since it would unify
the dark background thing.