Updated mediawiki/extensions
Project: mediawiki/extensions/SemanticPageMaker  9017a09ce99137c973eed7c7264ffd93d24e1518

Clean up easily removed $wgTitles

- Obtained from Parser, CategoryPage, SpecialPage, etc.
- Couple of unused instances

Change-Id: I1a73d025bbeacc09ac94383ca898854c531e6eeb