Silence the "mangling of 'va_list' has changed in GCC 4.4" warning
MMS integration.

Very experimental.
Fixed signal signatures, added more debug trace
Tweaking packing/unpacking of message parts
Removed unnecessary annotation
Decoding QDBus arguments
Hooking up notifications
Use /org/freedesktop/Telepathy/Account/ring/tel/account0 as local uid
No need for both uuid and message id
Set LastPart attribute for the last attachment
Fixed signal signature (again)
Merge branch 'mms-test' into slava-mms-devel
Enable debug trace in debug build
Tweaking D-Bus interface with MMS backend