Revert "Update languagedetect library"

library/langdet/docs/iso.php

@@ -0,0 +1,19 @@
+<?php
+/**
+ * Demonstrates how to use ISO language codes.
+ *
+ * The "name mode" changes the way languages are accepted and returned.
+ */ 
+require_once 'Text/LanguageDetect.php';
+$ld = new Text_LanguageDetect();
+
+//will output the ISO 639-1 two-letter language code
+// "de"
+$ld->setNameMode(2);
+echo $ld->detectSimple('Das ist ein kleiner Text') . "\n";
+
+//will output the ISO 639-2 three-letter language code
+// "deu"
+$ld->setNameMode(3);
+echo $ld->detectSimple('Das ist ein kleiner Text') . "\n";
+?>