add Fritz!Box WLAN 3390 121.05.50 rev24404 
 * EXPERIMENTAL - not tested!
(refs #2002)

git-svn-id: file:///var/svn/freetz/trunk@9967 149334a1-2f27-0410-a3b9-fc62619ac1e6
FREETZ_ADD_REGEXT_GUI not needed for 5.50, it's a feature now (refs #1910)

git-svn-id: file:///var/svn/freetz/trunk@9968 149334a1-2f27-0410-a3b9-fc62619ac1e6