problem with middle click on merged account row
should open change status message dialog but i get:
Traceback (most recent call last):
File "/home/users/paladine/rpm/gajimsvn/gajim/src/roster_window.py", line 1315, in on_roster_treeview_button_press_event
show = gajim.connections[account].connected
KeyError: 'all'