MediaWiki 1.19.0rc1

I'm happy to announce the availability of the first release candidate
release of the new MediaWiki 1.19 release series.

Please test it and let us know what you think of it. Barring new bug
reports, this release candidate will soon be released as MediaWiki 1.19.0.

Please try it out and let us know what you think. Don't run it on any
wikis that you really care about, unless you are both very brave and
very confident in your MediaWiki administration skills.

MediaWiki 1.19 is a large release that contains many new features and
bug fixes. This is a summary of the major changes of interest to users.
You can consult the RELEASE-NOTES-1.19 file for the full list of changes
in this version.

Our thanks go to everyone who helped to improve MediaWiki by testing
the beta release and submitting bug reports.

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                             What's new?
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MediaWiki 1.19 brings the usual host of various bugfixes and new features.

Comprehensive list of what's new is in the release notes.

* Bumped MySQL version requirement to 5.0.2.
* Disable the partial HTML and MathML rendering options for Math,
  and render as PNG by  default.
  * MathML mode was so incomplete most people thought it simply didn't work.