Pullup ticket #4233 - requested by wen
www/mediawiki: security update

Revisions pulled up:
- www/mediawiki/Makefile                                        1.34
- www/mediawiki/PLIST                                          1.17
- www/mediawiki/distinfo                                        1.23

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  Module Name:    pkgsrc
  Committed By:  wen
  Date:          Sat Sep  7 14:49:42 UTC 2013

  Modified Files:
          pkgsrc/www/mediawiki: Makefile PLIST distinfo

  Log Message:
  Update to 1.21.2

  Upstream changes:
  Changes since 1.21.1
  SECURITY: Fix extension detection with 2 .'s
  SECURITY: Support for the 'gettoken' parameter to action=block and
  action=unblock, deprecated since 1.20, has been removed.
  SECURITY: Sanitize ResourceLoader exception messages
  Purge upstream caches when deleting file assets.
  Unit test suite now runs the AutoLoader tests. Also fixed the autoloading
  entry for the PageORMTableForTesting class though it had no impact.

(tron)