⬆️ Update Text_LanguageDetect.

Update from v0.3.0 (2012) to v1.0.0 (2017) which should remove some
warnings and improve PHP7 support.
Using composer to handle this PEAR library now.

Fix a problem in FeedutilsTest.

vendor/composer/include_paths.php

@@ -0,0 +1,10 @@
+<?php
+
+// include_paths.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    $vendorDir . '/pear/text_languagedetect',
+);