[Azoth Murm] Delete chat entries on going offline for #1342.
[Azoth Murm] Return chat entries as well.
[Azoth Murm] Clear self entry on going offline.

Probably fixes #1342. Need to check if avatars would be fine though.
[AN] Style fixes.
[AN] Reselect rule on save, fixes #1341.
[AN] Check if cmd arg dialog was cancelled, fixes #1339.