Default to todays date

Author: abraham

src/experts-activities/experts-activity-create.html

@@ -387,6 +387,7 @@ <h2>
           value: function() {
             return {
               'title': '',
+              'date': new Date().toISOString().slice(0,10),
               'description': '',
               'product_groups': [],
               'activity_details': []