Retfilter0.6 releases

Hi folks

this is to announce the first public release of Retfilter, a DSL
interface to iptable commands.

Although this code is used in production be warned please if you want
to use it, it is badly documented and the code is very, very bloated.

We use it only by means of studying the produced iptable output very
carefully and adding it into test/testcases once it is approved.

The basic purpose of this release is to share the code with some
people who are interested in it. Maybe it will become nice one day…

If you are interested in working with this code or even in seriously
using it please contact me OL, I am happy to share some more
information about it which is unfortunately not yet available as
documentation :frowning: