libs/core: add "tunnel" interface type to network model, various optimizations
libs/core: add "tunnel" interface type to network model, various optimizations


git-svn-id: f7818b41aa164576329f806d7c3827e8a55298bb@7543 ab181a69-ba2e-0410-a84d-ff88ab4c47bc

fqrouter/luci,fqrouter/luci,fqrouter/luci,fqrouter/luci,fqrouter/luci,fqrouter/luci,fqrouter/luci,fqrouter/luci