Updated mediawiki/extensions
Project: mediawiki/extensions/EducationProgram  c80135a27579080a06ca7a849ba3e0b7b108852d

Use correct case for Special:Prefixindex

This prevents a case mismatch notice that vagrant complains about.

Change-Id: I6e939acf81355678b9ff76e8f695edc7432a144e