Updated mediawiki/extensions
Project: mediawiki/extensions/EducationProgram  b1bc79052dabea5a2d249c9634cfce6fca495e62

(Bug 46188) Implement IContextSource::exportSession

Gerrit change I543e6766f added an 'exportSession' method to
IContextSource that concrete classes must implement. EducationPage did
not. It does now.

Change-Id: Icbcbad6f9cc469ce7a1228d640826f1e6ba419d9