add function to check the free space for a given directory

Florian Schaal

2014-03-11 6ff8d7bcb40c074e6b1b12c33d9478cdad0c6bd0

 interface/web/help/index.php

@@ -13,4 +13,4 @@
  <p>&nbsp;</p>
</div>
</BODY>
</HTML>
</HTML>