Added Statistics

See: https://github.com/freifunkhamburg/ffffng/issues/24

admin/js/views/dashboardStats.js

@@ -0,0 +1,22 @@
+'use strict';
+
+angular.module('ffffngAdmin')
+.directive('faDashboardStats', function ($http, $state, notification) {
+    var link = function (scope) {
+        scope.stats = {};
+        $http.get('/internal/api/statistics')
+            .then(function (result) { scope.stats = result.data; })
+            .catch(function (e) {
+                notification.log('Error: ' + e.data, { addnCls: 'humane-flatty-error' });
+                console.error(e);
+            });
+    };
+
+    return {
+        'link': link,
+        'restrict': 'E',
+        'scope': {},
+
+        'templateUrl': 'views/dashboardStats.html'
+    };
+});