Fixed normal bug EXT-1509 "Going into mouselook while in a private call ruins the call floater.": - Made callfloater a single instance floater. - Updated floater IM panel visibility change logic. - Added NULL checks for voice client pointers in LLFloaterIMPanel.
Fixed normal bug EXT-1509 "Going into mouselook while in a private call
ruins the call floater.":
- Made callfloater a single instance floater.
- Updated floater IM panel visibility change logic.
- Added NULL checks for voice client pointers in LLFloaterIMPanel.

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm