firewall: Allow to disable masquerading.
Squid-accounting: new addon for measuring proxy traffic per user/ip
Per-PDF-API2: new perl module used by squid-accounting
squid-accounting: change permissions and reread languagefiles on uninstall
squid-accounting: changed permissions on acct-lib.pl
firewall-no-nat: Use network masks to identify the subnets.

In the POSTROUTING chains of the NAT table, there is
no more information about on which interface the packet
has arrived (green0, etc.).
squid-accounting: create billpreview file as temporary file
Add batctl and libnl-3.
Merge remote-tracking branch 'ms/firewall-no-nat' into next

Conflicts:
	doc/language_issues.nl
	doc/language_issues.tr
Merge remote-tracking branch 'amarx/ACCOUNTING' into next

Conflicts:
	make.sh