Openvpn: Change sortorder of client status and control

Now every NET is sorted and second instance is the NAME of the VPN.
OpenVPN: change sortorder of client status and control. Now every network is sorted and displayed in a group
netexternal.cgi: Show DNSSEC status

The netexternal.cgi has been extended to show what type
of DNSSEC support the upstream nameservers offer.
Merge remote-tracking branch 'amarx/openvpn'
ddns.cgi: Add handling for entrydns and opendns.
Merge remote-tracking branch 'stevee/ddns-new-providers'
check_mk_agent: update to 1.2.4p5
check_mk_agent: increase PAK_VER
core80: add proxy.cgi to update.
webif: hide main-menu if gpl was not accepted.
check_mk_agent: fix DL_FROM
core80: Add proxy.cgi.
Merge remote-tracking branch 'morlix/check_mk'
netexternal.cgi: Fix font colour on yellow background.
Merge branch 'master' of ssh://git.ipfire.org/pub/git/ipfire-2.x
checkwronglinks: add a check for var/run/* in rootfiles.
rootfiles: remove /var/run/... from packages.

this will destroy a symlink to /run and is a ramdisk so
content is removed on every boot and it make no sense to
package it.
cleanfs: repair /var/run symlink to /run if it not exist.