Moved lib/API to lib/Router

- renamed lib/API/API.php to lib/Router/Front.php
- updated namespaces in various file to account for namespace change

lib/API/Endpoints/Queue.php

@@ -1,16 +0,0 @@
-<?php
-namespace MailPoet\API\Endpoints;
-
-use MailPoet\Cron\Daemon;
-
-if(!defined('ABSPATH')) exit;
-
-class Queue {
-  const ENDPOINT = 'queue';
-  const ACTION_RUN = 'run';
-
-  static function run($data) {
-    $queue = new Daemon($data);
-    $queue->run();
-  }
-}

lib/API/Endpoints/Subscription.php

@@ -1,24 +0,0 @@
-<?php
-namespace MailPoet\API\Endpoints;
-
-use MailPoet\Subscription as UserSubscription;
-
-if(!defined('ABSPATH')) exit;
-
-class Subscription {
-  const ENDPOINT = 'subscription';
-
-  static function confirm($data) {
-    $subscription = new UserSubscription\Pages('confirm', $data);
-    $subscription->confirm();
-  }
-
-  static function manage($data) {
-    $subscription = new UserSubscription\Pages('manage', $data);
-  }
-
-  static function unsubscribe($data) {
-    $subscription = new UserSubscription\Pages('unsubscribe', $data);
-    $subscription->unsubscribe();
-  }
-}

lib/API/Endpoints/Track.php

@@ -1,23 +0,0 @@
-<?php
-namespace MailPoet\API\Endpoints;
-
-use MailPoet\Statistics\Track\Clicks;
-use MailPoet\Statistics\Track\Opens;
-
-if(!defined('ABSPATH')) exit;
-
-class Track {
-  const ENDPOINT = 'track';
-  const ACTION_CLICK = 'click';
-  const ACTION_OPEN = 'open';
-
-  static function click($data) {
-    $clicks = new Clicks($data);
-    $clicks->track();
-  }
-
-  static function open($data) {
-    $opens = new Opens($data);
-    $opens->track();
-  }
-}

lib/API/Endpoints/ViewInBrowser.php

@@ -1,16 +0,0 @@
-<?php
-namespace MailPoet\API\Endpoints;
-
-use MailPoet\Newsletter\ViewInBrowser as NewsletterViewInBrowser;
-
-if(!defined('ABSPATH')) exit;
-
-class ViewInBrowser {
-  const ENDPOINT = 'view_in_browser';
-  const ACTION_VIEW = 'view';
-
-  static function view($data) {
-    $viewer = new NewsletterViewInBrowser($data);
-    $viewer->view();
-  }
-}