Fixed updating of remote endpoint information in INVITE dialogs

Ignore-this: ca338017b934e940bf50fa01df83b847

darcs-hash:20091112104439-1e3d8-efbc0768b14410a9538c085ce899150f5cc0a41c
isComposing support in the ChatStream

darcs-hash:20091112170904-56b4d-5f2226e06a75d9eb33c9852ebf7012488d3b130c