remove link to stack overflow in help menu
remove link to stack overflow in help menu

fotinakis/travis-web,travis-ci/travis-web,fotinakis/travis-web,2947721120/travis-web,2947721120/travis-web,travis-ci/travis-web,fauxton/travis-web,fauxton/travis-web,travis-ci/travis-web,fauxton/travis-web,2947721120/travis-web,fotinakis/travis-web,fauxton/travis-web,2947721120/travis-web,fotinakis/travis-web,travis-ci/travis-web