Properly handle the width of math and mtd elements by explicitly setting the width from the child mrow (works around FF bug that gets these widths wrong).  Resolves issue #558.
Add some comments, and clear the list of DOM elements once we are done with it.
Add config option for matching font heights in NativeMML and HTML-CSS output (can't do it for SVG, since we aren't using native fonts)
Add a loop to check for font changes due to web fonts either in the math or the surrounding font.  Resolves issue #558.
Add support for matching web fonts in HTML-CSS.  Change the names of the paramters that control it in NativeMML (so both have the same names).  Add a global matchWebFonts option to control whether to do the loop to check for web fonts (off by default).  Resolves more of issue #558.
Remove old Chrome 5-beta test for stylesheet checking, and replace it with a check for linked stylesheets (which don't currently work -- luckily they are not used).  Resolves issue #584.
Remove debugging message
Merge pull request #593 from dpvc/issue584

Resolve issue #584 (and also an issue with loading css files in Chrome)
Make web font loop into an extension (first draft)
Add the MatchWebFonts.js extension file
Mark the postTranslate call that does chunk updates as a partial one
Merge pull request #598 from dpvc/issue558-loop

Improve width computation for MathML elements (issue #558)
Merge branch 'master' into issue530
Import new translations from MathJax-i18n. #530