Improve default groups for special pages: 23 out of 29 remaining ungrouped pages...

Improve default groups for special pages: 23 out of 29 remaining ungrouped pages have been grouped. This leaves us with only 6 stragglers.
+ pages (For page lists like Allpages, Redirect lists, random pages, and other special pages listing or pointing to certain pages)
+ pagetools (For tools used to work on pages such as page movement, importing/exporting pages, and anything to do with (un)deleteion or history management of pages)
+ wiki (For special pages which list or modify data about the wiki and/or it's software such as Wiki statistics, Software version, Locking/Unlocking the database, and listing software messages)
- Preferences and password resets also moved to users.