Encode the Username

Encode the username, so spaces in the username don't throw an error.

module/VuFind/src/VuFind/ILS/Driver/KohaILSDI.php

@@ -1603,7 +1603,7 @@ class KohaILSDI extends \VuFind\ILS\Driver\AbstractBase implements
         //       . "&password=" . $password
         // );
         $idObj = $this->makeRequest(
-            "LookupPatron" . "&id=" . $username
+            "LookupPatron" . "&id=" . urlencode($username)
             . "&id_type=userid"
         );