Python 2.7: Force zeroconf to version 0.19
Python 2.7: Force zeroconf to version 0.19

Version 0.20 seems incompatible with Python 2.7:

File "zeroconf.py", line 756, in read_name
    t = length & 0xC0
TypeError: unsupported operand type(s) for &: 'str' and 'int'

tcalmant/ipopo