Notification method "Pop it up" marks all msgs as read automatically
Bug description
Notification method "Pop it up" marks all incoming msgs as read automatically.
Gajim shouldn't consider it read until the tab/window has been focused.
If the tab/window already has focus, gajim should take into consideration the time the user was last active in order to determine whether it marks the msg as read or not. E.g. if there wasn't any user interaction for more than [insert fitting numbere here] seconds, don't automatically mark the msg as read.
Steps to reproduce
Software versions
OS version: Ubuntu 11.10
GTK version: 2.24.6
PyGTK version: 2.24.0