Updated mediawiki/extensions
Project: mediawiki/extensions/MathSearch  e911abe2829c9b4d7dee9008c4b63679ce022a85

Fix encoding to UTF-8

While I am at it:
* Kill trailing space
* Fix formatting
* Add some comments to show that these are special pages and therefore do not need a prefix

Change-Id: I184e4e71d5c2f8307440dc994981dd241db87782