* (bug 27549) action=query&list=users&usprop=groups doesn't show implicit
groups if a user doesn't have explicit groups.
* (bug 27670) Ordering by timestamp (and usage of start and end) isn't as clear
- in auto generated document, as it is on mw.org.
+ in auto generated document, as it is on mediawiki.org.
* (bug 27182) API: Add filter by prefix for meta=allmessages.
* (bug 27183) API: Add filter by customisation state for meta=allmessages.
* (bug 27340) API: Allow listing of "small" categories.