init() called after client got loaded
deinit() called when client is about to get unloaded
reset() called once before Options::resetClients() is emitted
svn path=/trunk/kdebase/kwin/; revision=93372
According to him, okayed by Mosfet and Matthias Ettrich,
I add it now to get it in before the freeze as he's got no account (yet)
svn path=/trunk/kdebase/kwin/; revision=77435