Refresh contact list when sending messages

Although after sending a message that contact should be at the top of the list, it's currently not.

changed milestone to %GTK Next

added T: bug label

mentioned in commit 5d7ee911

assigned to @nicoalt

changed milestone to %GTK 0.1.0-beta1

mentioned in merge request !57 (merged)

mentioned in commit 4aba6452

closed via merge request !57 (merged)

closed via commit 4aba6452