MediaWiki 1.20.3 Upgrade May 2013

MPDL

Purpose

 * 1) Get the latest stable Mediawiki Release working to gain security patches
 * 2) Reality-Test Plugins
 * 3) Update Navigation-Bar
 * 4) Add any widely-requested Plugins (Google search)
 * 5) As few changes to User Interface as possible.

New Features

 * 1) Google Search in addition to existing Mediawiki Search
 * 2) Changed captcha mechanism for new user account creation
 * 3) New Multi-Category Search

Old (but not well known) Features

 * 1) Glossary. See [wiki:glossary]. See
 * 2) Syntax highlighting. See ...
 * 3) CategoryTree. See
 * 4) SkinPerPage. See.

Removed Features

 * 1) Calendar Extension. never used and had security flaws.
 * 2) TableEdit Extension. Not frequently used and the Extension is no longer maintained. The last-known editors of the few pages where this extension is in use have been informed in advance
 * 3) Hierarchy Extension. Never used.
 * 4) WhoIsOnline Extension. Never used.
 * 5) ImageMap Extension. Never used.
 * 6) Freemind (Mind-Mapping) Extension. Not frequently used and has unwelcome installation prerequisites.
 * 7) Cite Extension. Never Used

Technical Details

 * Tweaks were necessary in the following code
 * For GroupBasedAccessControl. GroupBasedAccessControl/accessControlSettings.php location of No_Access warning
 * For GoogleSiteSearch. tweaks to specials/SpecialSearch to allow prepending of Google search results