zf 1.12 compatibility: add head action
zf 1.12 compatibility: add head action

TODO: do something useful in there

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