Move to webpack

Signed-off-by: Julius Härtl <jus@bitgrid.net>

js/directive/elastic.js

@@ -19,6 +19,7 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *  
  */
+import app from '../app/App.js';
 
 // original idea from blockloop: http://stackoverflow.com/a/24090733
 app.directive('elastic', [