connectio can be None when we try to send
Traceback (most recent call last):
File "gajim.py", line 1249, in process_connections
gajim.connections[account].process(0.01)
File "/home/nk/gajim/trunk/src/common/connection.py", line 2377, in process
self.connection.send(tosend)
AttributeError: 'NoneType' object has no attribute 'send'