Update mocha dependency
Update mocha dependency

wagnerand/jpm,alexduch/jpm,freaktechnik/jpm,alexduch/jpm,johannhof/jpm,johannhof/jpm,mozilla/jpm,mozilla/jpm,mozilla/jpm,freaktechnik/jpm,mozilla-jetpack/jpm,johannhof/jpm,mozilla-jetpack/jpm,mozilla-jetpack/jpm,wagnerand/jpm,wagnerand/jpm,freaktechnik/jpm,alexduch/jpm