Ok this is the major rework of quassel we've all been waiting for. For the actual...

Ok this is the major rework of quassel we've all been waiting for. For the actual user it's a step back though (at least for the moment). With this update the topicline, and the nicklist will not be working anymore.
Major changes:
 - core/server.cpp has been disected into seperate handlers which all derive from core/basichandler
 - the switch from networknames to networkids has been done where possible (connection to irc is still missing since this is undergoing a separate redesign)
 - there are now objects providing information about networks, ircusers and channels. they are avaialbe in the core and in the client
 - BufferId has been renamed to BufferInfo since it's no longer an Identifier. (the actual identifier is BufferInfo.uid())