version: 0.9, refactored, nosetests for 95% of the code now

README shows a short wrapper, which may be run from cron.
No more executables are called from python due to no good testing.
nosetests cover 95% of iptables-optimizer.py, main-part is
not tested, thats done simple by: make tests
reference-input is default input-file, if you like another, feel
free to change. reference-file herein is taken for the tests only!