Update dansguardian to 2.12.0.3

* Applied patch #9 (Crash when more than one authplugin are selected)
  by Frederic Bourgeois
* Added feature to allow Facebook mock ajax (request #6) by Jason Spiro
* Added contrib dir
* Added a new html & css validated html template in contrib (request #3).
  By Chris Peschke
* Converted iso-8859 message files to utf-8 (bug #86). Suggested
  by Fred Ulisses Maranhao
* Fixed Error reading Content-Length (bug #84). By Carlos Soto
* Fixed compilation error BSD due lack of string.h when using
  memcpy() (bug #75). By Alexander Hornung
* Fixed exceptioniplist case sensitivity (bug #11). By Mark J Hewitt
* Fixed accept-encoding support for new tokens (bug #13). By userquin
* Applied patch 3438750 (GCC 4.4 and 4.6 compatibility) by Mathieu PARENT
* Applied patch 3438749 (French translation update) by Mathieu PARENT
* Applied patch 3418297 (Set proxy timeout in dansguardian.conf)
  by Frederic Bourgeois
* Applied patch 3419088 (login/password in URL is dropped) by Mathieu PARENT
* Applied patch 3419089 ("Expect" header should be dropped) by Mathieu PARENT
* Applied patch 3438751 (Fix queue handling in OptionContainer)
  by Mathieu PARENT
* Applied patch 3515167 (Fix digest identication) by Frederic Bourgeois
* Fixed GCC warnings
* LFS review in String.cpp (requires different arch review yet)

Previous release notes seem to be lost - the build structure changed, and:

  Both the main configuration file and the filter group configuration
  file(s) have changed since the last stable release.  If you try
  to re-use the configuration from an existing copy of 2.8.0.6 or
  earlier, the daemon will not start.  On the other hand, list
  files (phrase lists, domain lists, etc.) have not changed format,
  and should largely "just work".  There have been improvements to
  the default list files, though, so again it is recommended that
  you start from the new version and re-do any customisations.
Updated www/dansguardian to 2.12.0.3
add patch from upstream to fix heap-based buffer overflow which can lead
to arbitrary code execution (CVE-2014-2525)
bump PKGREV
add patch from upstream (XSA-89) to fix:
Processing of the HVMOP_set_mem_access HVM control operations does not
check the size of its input and can tie up a physical CPU for extended
periods of time.
bump PKGREV