phihag/ipaddress — pull request #12 by xZise (2014-08-26 00:05:09+00:00)
Title: Only allow decimal IPv4 addresses in IPv6 addresses.

According to http://www.ietf.org/rfc/rfc3986.txt the IPv4 address
at the end of IPv6 addresses may not have leading zeroes. This
enables IPv4Address to only accept decimal numbers, if that flag
is set.