Updates to German lang, changed date format

* Update README.md

* Update README.md

* Update lang.de.php

Changed "Error" to "Fehler"

* Update readme.md

- Added the German Readme URL

* Update README.md

* Update lang.de.php

- Changed the "takealook" 

Thanks to @Bluscream

* Update adminlist.php

Change the Date Format from xx-xx-xxxx to xx.xx.xxxx

* Update bans.php

Changed the Dateformat from xx-xx-xxxx to xx.xx.xxxx

* Update bans.php

Changed the Dateformat from xx-xx-xxxx to xx.xx.xxxx

* Update README.md

include/adminlist.php

@@ -5,7 +5,7 @@ require_once __DIR__ . "/cacheutils.class.php";
 $cacheutils = new CacheUtils('adminlist');
 
 if($cacheutils->isExpired()) {
-    $cacheutils->setValue([getAdminList(), date('d-m-Y H:i:s')], 120);
+    $cacheutils->setValue([getAdminList(), date('d.m.Y H:i:s')], 120);
 }
 
 $adminlist = $cacheutils->getValue();