Handle IPv4 inet addresses on Windows
Handle IPv4 inet addresses on Windows

IPv6 addresses are still not supported due to a lack of
inet_ntop and inet_pton, but this only matters if an
IPv6 address is actually used.  Otherwise, we shouldn't
care.

Resolves PYTHON-18

HackerEarth/cassandra-python-driver,vipjml/python-driver,jregovic/python-driver,tempbottle/python-driver,datastax/python-driver,mambocab/python-driver,jfelectron/python-driver,thobbs/python-driver,datastax/python-driver,stef1927/python-driver,beobal/python-driver,coldeasy/python-driver,tempbottle/python-driver,thelastpickle/python-driver,mobify/python-driver,mike-tr-adamson/python-driver,markflorisson/python-driver,stef1927/python-driver,thobbs/python-driver,bbirand/python-driver,mike-tr-adamson/python-driver,vipjml/python-driver,markflorisson/python-driver,jfelectron/python-driver,mobify/python-driver,kracekumar/python-driver,kishkaru/python-driver,coldeasy/python-driver,thelastpickle/python-driver,kracekumar/python-driver,sontek/python-driver,jregovic/python-driver,bbirand/python-driver,sontek/python-driver,beobal/python-driver,mambocab/python-driver,yi719/python-driver,kishkaru/python-driver,HackerEarth/cassandra-python-driver,yi719/python-driver