Implement wireless client on RED.

http://wishlist.ipfire.org/wish/wireless-client-on-red

Conflicts:
	doc/language_issues.de
	doc/language_issues.en
	doc/language_issues.es
	doc/language_issues.fr
	doc/language_issues.pl
	doc/language_issues.ru
	src/misc-progs/Makefile
Add wireless client for RED to startup process.

http://wishlist.ipfire.org/wish/wireless-client-on-red
Increase performance of the squidclamav redirector.

To boost up the performance, now we trust the proxy cache.

I add some changes to the proxy.cgi to configure the proxy and the
squidclamav in the right way.

I also add a hook that allows us to generate a new configuration
if the cgi script will be launched from the shell.

Fixes #10367.
kernel: bump pae kernel package version.
squidclamav: Update squidclamav.conf to use and trust the proxy cache.

If squidclamav is already installed, the configuration will be saved and updated during
the upgrade process.

Reference #10367.
igmpproxy: add igmpproxy.conf backup include.

fixes #10375.
Merge branch 'next' of ssh://git.ipfire.org/pub/git/ipfire-2.x into next
curl: Update to 7.31.0.

Disable IPv6 in order to avoid that AAAA record resolution
which may kill squidclamav.
Merge branch 'next' of ssh://git.ipfire.org/pub/git/ipfire-2.x into next
Replace whois by jwhois.
Merge branch 'master' into next
start core71.
jwhois: update rootfile.
core71: add curl to updater.
Merge remote-tracking branch 'stevee/wlan-client' into next

Conflicts:
	config/cfgroot/general-functions.pl
core71: add wlanclient to updater.
wlanclient: fix initskript rootfile for arm.
wireless-client: add wireless cfg to iso, backup and core71.
wireless-client: add cgi to iso.
dnsmasq: kill already old instances before start.