create gitignore file
Fix the IPv6 address range descriptions
Add Sander to AUTHORS and update the ChangeLog (IPv6 ranges)
fix unit test for the updated IPv6ranges
fix unit tests for 64 bits CPU
Fix reverseName() and reverseNames() for IPv4 in IPv6 addresses
update the project homepage URI
drop support python < 2.5; prepare support of python 3; change my email
upgrade syntax to python 2.5+

remove also old debug code
set 0.73 release date; reindent ChangeLog
add test.test to MANIFEST.in
set version to 0.74
ip.__nonzero__() and (ipa in ipb) return a bool instead of 0 or 1
IP('0.0.0.0/0') + IP('0.0.0.0/0') raises an error
fix deprecate warnings in test_IPy: replace .failXXX() by .assertXXX()
add Arfrever fullname and email

in AUTHORS, and fix a typo in its name (ChangeLog)
test_IPy.py: remove explicit casts to long

use 2to3 + manual changes
set 0.74 release date
Issue #4: IP('::/0').netmask() gives IP('::') instead of IP('0.0.0.0')
prepare release 0.75