* Added a new module for exiting the client (client_exit).
* Added tab spacing to the UITabBar class.
* Added tab popup menus for things like channel tabs.
* Impelemented channel tab popup menus (still need to be finished).
* Fixed UITabBar tab draging (will now change after dragged half way over the
next tab, not 2 pixels).
* Fixes to the client_options module.
* Edited some UI settings.
* Changed game_cooldown and game_spelllist menu button icons.
* Fixed some typos.
Added key 'moveable' to tabbars
(tabbars are ordered with margins now, not with anchors to the previous
widget)
If stretching is forbidden by options the mapPanel will now update when
the window is resized
Eduardo Bart