Add Special:[All]MyFiles as alias for Special:[All]MyUploads

I've been typing the wrong one all day. When I mentioned it on
irc, Odder seemed to think making an alias would be a good idea.

Change-Id: I4373caf65495b1bd773758d880b1f5c03cfbfe2a
Merge "Add Special:[All]MyFiles as alias for Special:[All]MyUploads"