add piwik installation

www/analytics/plugins/Feedback/angularjs/ratefeature/ratefeature-controller.js

@@ -0,0 +1,23 @@
+/*!
+ * Piwik - Web Analytics
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ */
+
+angular.module('piwikApp').controller('RateFeatureController', function($scope, rateFeatureModel, $filter){
+
+    $scope.dislikeFeature = function () {
+        $scope.like = false;
+    };
+
+    $scope.likeFeature = function () {
+        $scope.like = true;
+    };
+
+    $scope.sendFeedback = function (message) {
+        rateFeatureModel.sendFeedbackForFeature($scope.title, $scope.like, message);
+        $scope.ratingDone = true;
+        // alert($filter('translate')('Feedback_ThankYou'));
+    };
+});