Fixed #4033 Special characters in email mailbox password

Till Brehm

2016-07-19 aad102f73868ea83357856c3afe57617f411c83a

 interface/lib/classes/auth.inc.php

@@ -213,7 +213,10 @@
      return str_shuffle($password);
   }

   public function crypt_password($cleartext_password) {
   public function crypt_password($cleartext_password, $charset = 'UTF-8') {
      if($charset != 'UTF-8') {
         $cleartext_password = mb_convert_encoding($cleartext_password, $charset, 'UTF-8');
      }
      $salt="$1$";
      $base64_alphabet='ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
      for ($n=0;$n<8;$n++) {