Updated mediawiki/extensions
Project: mediawiki/extensions/GettingStarted  932a94b511f27568306d07252c2b584c003bc220
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Set master to the equivalent of the 1.21wmf8 deployment branch.

There is a separate feature branch, feature/gettingstartedv2,
branched off before this commit.

Change-Id: I1c0713b9701eeb04abb0acd1ac1801990fa7c68b