Port Zeroconf feature
We should use https://pypi.python.org/pypi/zeroconf
python-avahi seems to be not included by debian anymore in newer versions
Asterix already started a branch here: https://dev.gajim.org/asterix/gajim/commits/pyzeroconf
We should use https://pypi.python.org/pypi/zeroconf
python-avahi seems to be not included by debian anymore in newer versions
Asterix already started a branch here: https://dev.gajim.org/asterix/gajim/commits/pyzeroconf