uhttpd: update to the latest version, fixes cgi path handling issues

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40743 3c298f89-4303-0410-b956-a3cf2f4a3e73
[tools] quilt: update to 0.63

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40744 3c298f89-4303-0410-b956-a3cf2f4a3e73
odhcp6c: bring up nested interfaces on config change

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40745 3c298f89-4303-0410-b956-a3cf2f4a3e73