Updated mediawiki/extensions
Project: mediawiki/extensions/MathSearch  bf26297b797eec5841cf199b1752d36c53829318

Update to NTCIR-11 query format

* Add NTCIR-11 tex query format.
TODO: Update XML format as well.

Change-Id: I9faf5957d53813711c97ca4b9b5d025b2bc8a8f5