Inside every LuCI package you need to clear luci-indexcache and
sometimes when installing non LuCI pacakges it's also needed to clear
it. Easier put it into default_postinst().
Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42923 3c298f89-4303-0410-b956-a3cf2f4a3e73