tests: NLA compare test == and !=
ipdb: fix watchdog leak in commit()
ipdb: remove obsoleted hack from commit()
ipdb: fix handling of IP addr add errors
docs: update docs and merge wiki
ipdb: support dotted quad mask notation in add_ip()/del_ip()
ipdb: do not use deprecated "Exception.message"
tests: run tests with -W error (raise on warnings)
tc: force msg parameters from float to integer
Makefile: clean docs
docs: add default css
docs: IPDB docs update
generic: set operators on NL messages

a - b = complement
a & b = intersection
Makefile: use full path to Python interpreter
tests: increase limit of open files
iocore: close old socket on `shutdown` call
fix socket fd leaks
generic: fix NLA operators recursion
ipdb: save `Transactional` object's nlmsg
generic: `strip()` NLA[s] from nlmsg