fixes #228

Problem 1 was that triggers were not added on fresh installs, only
during upgrades. Also added trigger for actual deletes.

Second problem was that nothing would update notifications on
deletes. Added an observer for the URI and suitable notifyChange
calls.

Signed-off-by: Jonas Kalderstam <jonas@kalderstam.se>
Set minimum versions to Ice Cream Sandwhich so I can start removing
deprecated crap.

Also set default theme to White with Black action bar.

Signed-off-by: Jonas Kalderstam <jonas@kalderstam.se>