move isAckDataValid to its own function
move isAckDataValid to its own function

mailchuck/PyBitmessage,torifier/PyBitmessage,JosephGoulden/PyBitmessageF2F,xeddmc/PyBitmessage,krytarowski/PyBitmessage,krytarowski/PyBitmessage,debguy0x/PyBitmessage,Atheros1/PyBitmessage,timothyparez/PyBitmessage,timothyparez/PyBitmessage,torifier/PyBitmessage,mailchuck/PyBitmessage,xeddmc/PyBitmessage,torifier/PyBitmessage,bmng-dev/PyBitmessage,debguy0x/PyBitmessage,mailchuck/PyBitmessage,debguy0x/PyBitmessage,lightrabbit/PyBitmessage,Atheros1/PyBitmessage,kyucrane/PyBitmessage,timothyparez/PyBitmessage,Erkan-Yilmaz/PyBitmessage,hb9kns/PyBitmessage,tigerbunny/bitmessage,tigerbunny/bitmessage,rzr/PyBitmessage,JosephGoulden/PyBitmessageF2F,hb9kns/PyBitmessage,lightrabbit/PyBitmessage,gnu3ra/PyBitmessage,debguy0x/PyBitmessage,bmng-dev/PyBitmessage,gnu3ra/PyBitmessage,lightrabbit/PyBitmessage,tigerbunny/bitmessage,hb9kns/PyBitmessage,kyucrane/PyBitmessage,rzr/PyBitmessage,hb9kns/PyBitmessage,Atheros1/PyBitmessage,metamarcdw/PyBitmessage-I2P,domob1812/PyBitmessage,torifier/PyBitmessage,domob1812/PyBitmessage,bmng-dev/PyBitmessage,mailchuck/PyBitmessage,Erkan-Yilmaz/PyBitmessage,timothyparez/PyBitmessage,domob1812/PyBitmessage,Atheros1/PyBitmessage,metamarcdw/PyBitmessage-I2P,lightrabbit/PyBitmessage