netfilter: adding host IP filtering
Merge pull request #6 from fpaut/netfilter

netfilter: adding host IP filtering
netfilter: Bug fix and code cleaning
Merge pull request #7 from fpaut/netfilter

netfilter: Bug fix and code cleaning
customize netmask error messages, factorize code
cosmetics
add Fred in the python files authors list
Adding me as author
update authors and todo list
agent not yet integrated in this branch