Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  a2dbbce1cc7987d8a2db01b1197c54f0b131e188
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Make Cancel link in PhotoUploader work

Cancel link in photo upload progress popup now properly cancels all API
requests.

Change-Id: Ie75a8c0d2d2f23bb36807d0032dd4f21d5bba0c5