* Move the Preloader class into its own file + add $wgAutoloadClasses entry
* Coding style tweaks, as per MediaWiki's coding conventions
* Converted from PHP-based i18n to JSON i18n
* Version 1.3 with the appropriate changelog entries and whatnot
* Deprecated Preloader.php (but didn't fully remove it yet) in favor of extension.json -- MediaWiki 1.25 or newer is now required for this extension
* Added myself into authors
* Changed the Special:Version URL back to MediaWiki.org as it should be the canonical location for extension (and skin etc.) documentation; since this is an updated version of [[mw:Extension:Preloader]] it should be no problem to update that page to point to the correct repository etc.
* Tweak the README file to account for new MW requirements + extension loading method
* Fix $wgPreloaderSource so that it works again ( HT @legoktm )
