improve mobile menu performance: only load two levels
improve mobile menu performance: only load two levels

server side change, js todo

koala-framework/koala-framework,nsams/koala-framework,kaufmo/koala-framework,nsams/koala-framework,koala-framework/koala-framework,yacon/koala-framework,kaufmo/koala-framework,yacon/koala-framework,nsams/koala-framework,yacon/koala-framework,kaufmo/koala-framework