Updated mediawiki/skins
Project: mediawiki/skins/BlueSky  0de817db016426383ea84a7053abef1ad1449a1b

Removed UserCompletedImages stuff.

Again, extensions should remain as self-contained and
cross-skin-compatible as possible.

Change-Id: I72890342215efabf17231cc65f4e8fb4ead87301