Updated mediawiki/extensions
Project: mediawiki/extensions/EducationProgram  3eb715e8096ce7a28378f7f370762790feba5643

Style deletion warning messages

The messages warning users about the consequences of deleting
courses or institutions currently don't have any special styling.
This patch makes them look more ominous, like all warning
messages should.

Change-Id: I6ab9b14d0ed87ef70ec2dec70da01570f49fb3d0