Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  ccd1c5261ed5a3792f758172bfc6d7ff8fe4079f

Some permission fixes

'view' is checked against Header objects too.
We currently have no moderation for those, so this wasn't called,
but it should really be more general than just PostRevision ;)

Also pretty sure that all users can see log excerpts for hidden/deleted
stuff, at least that's how it works in other parts of MW (deletion
log is accessible to all)

Change-Id: I62413fc89422d8d98842e0f2b03ab0bdc093c343