miniupnpd: update to v1.7.20121005 (#9811, #10694, #10829)

	- enable IPv6 support
	- enable lease file support
	- simplify build recipe

git-svn-id: svn://svn.openwrt.org/openwrt/packages@35136 3c298f89-4303-0410-b956-a3cf2f4a3e73