extra method for accessing database rows
Merge branch 'LaTeXML' of ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/Math into LaTeXML

Conflicts:
	MathRenderer.php
Adjustments of the test to LaTeXML!
Needs more work see
http://wikidemo.formulasearchengine.com/wiki/NovelTest
TODO:
-Deactivate hooks
-ignore id's
-write script to generate mathParserTests and test issues with php unit
tests
Remark: mathParserTest will mainly test the intregration then