Until now, we relied on setting MW_NO_SETUP which was a) hacky, b) irreversable, and c) likely to be forgotten if you didn't use one of the wrappers like runChild().
Instead, move the freaky magic to doMaintenance and have *it* check if it's in a specific call stack that indicates this is being run from the file scope and should be executed. Rename DO_MAINTENANCE to RUN_MAINTENANCE_IF_MAIN so it's nice and clear what magic happens behind the require_once().
* 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.
