Bug fixes and new features in the Client


- fixed the status bug in "Online Users" window (when connect to a slow server "Loading" message is displayed above "You are not connected." message)
- on MAC partially fixed the drag and drop files on desktop bug
- on WIN32 fixed the toolbar activation bug (sometimes the toolbar is activated but not in the foreground)
- fixed problem with maximizing client on background after private message has been received
- save the positions of the files and news windows
- save the positions of pane views in files and news windows
- save the positions of tabs in users, servers, files and news windows