NEW - Drag drop call routing from lines and devices
FIX - Callback fixes
FIX - TBU conf persists client restart but client restarts with no conf control
FIX - Cannot hangup outbound ringing Skype call
FIX - Call routed to fader open destination can be parked / dropped
FIX - Dial dialogue fails to appear
FIX - Client updater should not allow downgrade against backup server
