Translations:MediaWiki 1.21/wmf11/4/en

Most important changes

 * - Add number of watchers to API prop=info
 * - API parameters may now be marked as type "upload", which is now used for action=upload's 'file' and 'chunk' parameters. This type will raise an error during parameter validation if the parameter is given but not recognized as an uploaded file.
 * More changing of "e-mail" to "email" in user facing text
 * - Add PagesWithProp special page and API module
 * Added an API query module list=pageswithprop, which lists pages using a particular page property.
 * Added an API query module list=pagepropnames, which lists all page prop names currently in use on the wiki.
 * - create language-specific collations for category sorting
 * - Give a 200 response for valid user pages (whether or not the user has edited the page yet)