Remove the vendor directory in .gitignore as these dependencies are needed for php-imap

plugins/php-imap/vendor/illuminate/contracts/Http/Kernel.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Illuminate\Contracts\Http;
+
+interface Kernel
+{
+    /**
+     * Bootstrap the application for HTTP requests.
+     *
+     * @return void
+     */
+    public function bootstrap();
+
+    /**
+     * Handle an incoming HTTP request.
+     *
+     * @param  \Symfony\Component\HttpFoundation\Request  $request
+     * @return \Symfony\Component\HttpFoundation\Response
+     */
+    public function handle($request);
+
+    /**
+     * Perform any final actions for the request lifecycle.
+     *
+     * @param  \Symfony\Component\HttpFoundation\Request  $request
+     * @param  \Symfony\Component\HttpFoundation\Response  $response
+     * @return void
+     */
+    public function terminate($request, $response);
+
+    /**
+     * Get the Laravel application instance.
+     *
+     * @return \Illuminate\Contracts\Foundation\Application
+     */
+    public function getApplication();
+}