Converted ExamplePlugin translation to json

plugins/ExamplePlugin/lang/en.json

+{
+    "ExamplePlugin": {
+        "exampleWidgets": "Example Widgets",
+        "exampleWidget": "Example Widget",
+        "photostreamMatt": "Matt\'s Photos",
+        "piwikForumVisits": "Piwik Forums visits",
+        "PiwikForumReceivedVisits": "On %s, Piwik forums received %s visits."
+    }
+}

plugins/ExamplePlugin/lang/en.php

-<?php
-/**
- * Piwik - Open source web analytics
- *
- * @link http://piwik.org
- * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
- *
- * @category Piwik_Plugins
- * @package ExamplePlugin
- */
-
-$translations = array(
-    'ExamplePlugin_exampleWidgets'           => 'Example Widgets',
-    'ExamplePlugin_exampleWidget'            => 'Example Widget',
-    'ExamplePlugin_photostreamMatt'          => 'Matt\'s Photos',
-    'ExamplePlugin_piwikForumVisits'         => 'Piwik Forums visits',
-    'ExamplePlugin_PiwikForumReceivedVisits' => 'On %s, Piwik forums received %s visits.'
-
-);