various fixes to clientmessage handler
various fixes to clientmessage handler

now uses the graph id of the open graph instead of 1 for chat

also sends rename messages to the other clients, instead of the one that's
already sent the message

Signed-off-by: Sam Phippen <e5a09176608998a68778e11d5021c871e8fae93c@googlemail.com>

samphippen/spe,samphippen/spe,samphippen/spe,samphippen/spe