Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  bb3c2521f4bac2c7edcebd186b9c345f05299e6f

Testing: Add donate image tests

For some reason these were not added meaning certain written tests
were not being run.

Change-Id: Ic180aec96ee6fb91574e674b7c14892204853d4c