Introduced a WebRequestUpload class which is a wrapper around $_FILES and contains all getUpload* and getFile* methods. This has as advantage that the upload can be passed along without $wgRequest. Also because I like objects.
* Add append() method to FileRepo classes to enable chunked uploading
* Change chunksessionkey to chunksession
* Remove echo json stuff
* Fix a multitude of bugs in my own code
* still to test: mwEmbed use of chunked upload
* Added $wgFixArchaicUnicode, which, if enabled, converts some deprecated Unicode sequences in Arabic and Malayalam text to their Unicode 5.1 equivalents.
* Added generateNormalizerData.php to generate the relevant data files. Added the generated data files also.
* Made most things call the new wrapper method $wgContLang->normalize() instead of UtfNormal::cleanUp(), so that Unicode normalization can be customised on a per-language basis.
* Added some generic support for conversion tables to Language so that subclasses can easily implement these kinds of transformations.
* Refactored the IE script entry point security check into WebRequest::isPathInfoBad(). Use the standard CGI variable PATH_INFO to do this check instead of the various potential non-standard solutions. Made the check fairly permissive to avoid a repeat of bug 13049 due to broken CGI setups especially with cgi.fix_pathinfo=0. This should theoretically be very portable and secure, but I have not tested it widely.
* Removed Chris Wrinn from the credits since his patch was wrong and has been removed.
* Made the error message more informative.
Session id is used by client request to specify its login data from cookie, so the session data, by extensions, is like a sort of request parameter. Also, WebResponse.php seems to be used for data actually sent to the client, like requested cookies.
* Two callers of wfArrayMerge() were bugs, both assuming strange and complex behaviour in wfArrayMerge() which has never been present or documented.
* Introduced wfMergeErrorArrays() to remove duplicates from merged error arrays, e.g. from getUserPermissionsErrors().
* Rewrote the remaining callers of wfArrayMerge() to use array plus. It makes the code clearer, assuming the reader knows more about basic PHP operators than GlobalFunctions.php. Considering the two bugs discussed above, this seems like a fair assumption. If you don't know PHP, you shouldn't be writing MediaWiki code.
* Switch from running fix_magic_quotes() on $_COOKIE and $_GET/$_POST to running it on $this->cookies and $this->data. Should keep us from interfering with other programs that might do the same (and/or trying to start up a second WebRequest object). This partially fixes bug 11558.
* Todo: Do similar things with $_SERVER/$_ENV and switch to a lazy-load style, rather than on every new WebRequest.
