Updated mediawiki/extensions
Project: mediawiki/extensions/WikibaseDatabase  e95322d92637ffb4315ca13068a4c7bf442b2fe3

Add FieldRemovalFailedException and FieldAdditionFailedException

Also fixes incorrect subclassing of QueryInterfaceException for exceptions
no longer related to this interface.

Change-Id: I25180498c5915cb8c51227f90151379622723b4b