Update nagios-base to 3.4.4.

3.4.4 - 01/12/2013
------------------
* Reenabled check for newer versions of Nagios Core (Mike Guthrie)
* Fixed bug #408: service checks get duplicated on reload (Eric Stanley)
* Fixed bug #401: segmentation fault on Solaris when parsing unknown timeperiod
  directives. (Eric Stanley)
* Added NULL pointer checks to CGI code. (Eric Stanley)
* Fixed buffer overflow vulnerability in CGI code. Thanks to Neohapsis
    (http://archives.neohapsis.com/archives/fulldisclosure/2012-12/0108.html)
  for finding this. (Eric Stanley)

(obache)