"X is now Available" shows up multiple times
Bug description
Gajim is used here at my work for Windows users and Mac users are using iChat. One of our users upgraded to OS X 10.8 which has replaced iChat with Messages. User A using Gajim is receiving multiple "X is now Available" from user B who is using Messages. They show up what looks like 3-4 times at the same time.
Steps to reproduce
I believe the feature is related to Messages's preference that automatically set the status to Away when idle.
Software versions
Gajim 0.15 on Windows 7