Also delayed sound support!
Fixed memory leaks and pass by values that LL likes to introduce.
Extended LLCoroResponder to have a responder for Raw strings, also clean it
Adds friend request message logging.
- internal : reviewed @recvim and @sendim for CHUI (SL-3.5)
Singu changes:
- Updated busy to be referred to as do_not_disturb in llviewermessage.cpp
- Don't send autoresponse if we can't send an IM by rlva
- Updated checks for from name being system to be to_id and from_id null checks.
- Minor compile fix in rlvui.cpp for last commit.
