Updated mediawiki/extensions
Project: mediawiki/extensions/EducationProgram  891aa0d2d2e2e57fdf609f4e3783199f05a5058e

i18n: remove leading tab character

Spotted by Siebrand
http://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Ep-addstudents-instructions/en

Change-Id: Id9200b5f8f2ea4d634729bd9ac2ff3ee62f5db36