CraftFire/CraftCommons — pull request #13 by Wolf480pl (2012-10-24 18:46:35+00:00)
Title: IP classes

IPAddress, IPv4Address, IPv6Address
IPRange, IPv4IntervalRange, IPv4MaskRange, IPv6IntervalRange, IPv6MaskRange
Some fixes in Version classes.
All these are immutable.
IPAddresses and Versions are HashMap compatible (can be used as a key)