Updated mediawiki/extensions
Project: mediawiki/extensions/Math  9f29f48506e023105d1d5cc3ff4c540e2853849d

MathJax: Use \mathbf instead \boldsymbol for the \bold command

\boldsymbol actually resulted in bold italic formatting, which was not
consistent with the texvc renderer. Use \mathbf (Bold face) instead.

Change-Id: I1a6fb07c55a2089c7acf50059a3a4a4e196812f1