tor: moved to github


git-svn-id: svn://svn.openwrt.org/openwrt/packages@42539 3c298f89-4303-0410-b956-a3cf2f4a3e73
libnatpmp: moved to github


git-svn-id: svn://svn.openwrt.org/openwrt/packages@42540 3c298f89-4303-0410-b956-a3cf2f4a3e73
lftp: moved to github


git-svn-id: svn://svn.openwrt.org/openwrt/packages@42541 3c298f89-4303-0410-b956-a3cf2f4a3e73