Wiki updater cleanup and improvements. * Less confusing API on `WikiParameters`. * Less confusing way to do things when running the Flask app. * When running locally, and the user edits a page, just resolve that page and mark any other including/querying page invalidated. Resolve those lazily on demand. * Add DB ability to return the resolved state of pages.

[pytest]
norecursedirs = .* _darcs CVS .svn .git .hg *.egg-info dist node_modules venv tmp* {args}