Firewall GUI 2.15 issues

Hello,

during a testing session on the past weekend, I still found a number of bugs in the new firewall scripts and GUI. Not big ones, but many small ones.

In order to track the a little bit better, I created an umbrella bug #10486 (https://bugzilla.ipfire.org/show_bug.cgi?id=10486, https://bugzilla.ipfire.org/showdependencygraph.cgi?id=10486), that I use to track all of them. So please, if you have some more issues, make sure to connect them to this bug as well that we don't forget to fix one.

I hope, that we will be able to fix all of the bugs there are now within this week, so that we are able to release an other beta version next weekend.

-Michael