add icons for Character groups

www/analytics/plugins/Overlay/client/translations.js

@@ -0,0 +1,30 @@
+var Piwik_Overlay_Translations = (function () {
+
+    /** Translations strings */
+    var translations = [];
+
+    return {
+
+        /**
+         * Initialize translations module.
+         * Callback is triggered when data is available.
+         */
+        initialize: function (callback) {
+            // Load translation data
+            Piwik_Overlay_Client.api('getTranslations', function (data) {
+                translations = data[0];
+                callback();
+            });
+        },
+
+        /** Get translation string */
+        get: function (identifier) {
+            if (typeof translations[identifier] == 'undefined') {
+                return identifier;
+            }
+            return translations[identifier];
+        }
+
+    };
+
+})();