* Create the WikiPage object directly in execute() and pass it to both delete() and deleteFile()
* Reordered parameters of delete() and deleteFile() to be consistent and take both on the WikiPage and User objects (instead of relying on $wgUser); no callers outside of this class
* Fixed deleteFile() to match the behaviour of FileDeleteForm with oldimage parameter
* Pass the User object to getPermissionsError()
* Factorised duplicated code
* Added missing error code to ApiBase (and also a new one)
* Added missing possible error codes (with a new one too)
It's a parctice that dates back to 2006 when the API was first written, and frankly isn't covered by the coding conventions. Same thing with the docblocks, they're all copypasted with some bits changed and don't even make sense if you look at them in the genereated code docs.
I don't feel that any of us depend on this anymore (get a better IDE), so in the inerest of consistancy it's time we said goodbye to it.
* Actions come in two flavours: the show-a-form-then-do-something-with-the-result (delete, protect, edit, etc) and the just-do-something (watch, rollback, patrol, etc). Create abstract base classes Action and FormlessAction to support these two cases. HTMLForm is an integral part of the form-based structure.
* Look mum, no globals! :D Fully context-based.
* Implement watch/unwatch, credits and delete actions in the new system as proof-of-concept. This also gives the delete frontend a much-needed overhaul.
* Stub out the newly-deprecated functions from Article.php. This already reduces its linecount by about 15%, and there are plenty more actions still to do.
* Centralising actions like this is going to render a lot of hooks type-incompatible. There's simply nowhere you can put the ArticleConfirmDelete hook, for instance, where it can be passed an OutputPage as the second parameter. On the other hand, we can implement new hooks like ActionModifyFormFields and ActionBeforeFormDisplay, which can do much prettier stuff to the forms, like adding extra fields the 'right' way. Update LiquidThreads to use these new hooks where appropriate.
Deprecate old watch/unwatch parameters
Move generic watchlist stuff to ApiBase/getWatchlistValue (maybe needs renaming better?)
Tweak some braces in ApiEditPage
Move token requringness check to the ApiMain
Adding an exception if we're using "gettoken" (block/unblock)
Remove array( 'missingparam', 'token' ), from the getPossibleErrors of modules that set requireToken method to true
