added map events tests
added map events tests

VincentDS/ember-leaflet,greyhwndz/ember-leaflet,gabesmed/ember-leaflet,radevco/ember-leaflet,twokul/ember-leaflet,nickiaconis/ember-leaflet,VincentDS/ember-leaflet,twokul/ember-leaflet,radevco/ember-leaflet,gabesmed/ember-leaflet,nickiaconis/ember-leaflet,greyhwndz/ember-leaflet