Skeleton extension for Universal Language Selector

* Basic extension code with i18n
* Adds a link to personal links to trigger ULS
* Core uls javascript code, to plug to the given trigger.
* Qunit, PHPUnit framework in place.
* and lot of TODOs and FIXMEs

Patch set 2:
* A tiny whitespace fix.

Change-Id: I300647a21e0b7f65b7d9dc6101014ea9389c9f2a

UniversalLanguageSelector.php

@@ -0,0 +1,58 @@
+<?php
+/**
+ * Universal Language Selector extension
+ * https://www.mediawiki.org/wiki/UniversalLanguageSelector
+ *
+ * @file
+ * @ingroup Extensions
+ * @author Santhosh Thottingal
+ * @copyright © 2012 Santhosh Thottingal
+ * @licence GNU General Public Licence 3.0 or later
+ */
+
+if ( !defined( 'MEDIAWIKI' ) ) {
+	echo( "This file is an extension to the MediaWiki software and cannot be used standalone.\n" );
+	die( -1 );
+}
+
+$wgExtensionCredits['other'][] = array(
+	'path'           => __FILE__,
+	'name'           => 'UniversalLanguageSelector',
+	'version'        => '0.1',
+	'author'         => array( 'Santhosh Thottingal' ),
+	'url'            => 'https://www.mediawiki.org/wiki/Extension:UniversalLanguageSelector',
+	'descriptionmsg' => 'uls-desc',
+);
+
+$dir = dirname( __FILE__ );
+
+// Internationalization
+$wgExtensionMessagesFiles['UniversalLanguageSelector'] = "$dir/UniversalLanguageSelector.i18n.php";
+
+// Register auto load for the page class
+$wgAutoloadClasses['UniversalLanguageSelectorHooks'] = "$dir/UniversalLanguageSelector.hooks.php";
+
+$wgHooks['BeforePageDisplay'][] = 'UniversalLanguageSelectorHooks::addModules';
+$wgHooks['PersonalUrls'][] = 'UniversalLanguageSelectorHooks::addTrigger';
+
+$wgResourceModules['ext.uls.init'] = array(
+	'scripts' => 'resources/ext.uls.init.js',
+	'localBasePath' => $dir,
+	'remoteExtPath' => 'UniversalLanguageSelector',
+	'dependencies' => 'ext.uls.core',
+	'position' => 'top',
+);
+
+$wgResourceModules['ext.uls.core'] = array(
+	'scripts' => array( 'resources/ext.uls.core.js' ),
+	'styles' => 'resources/css/ext.uls.css',
+	'localBasePath' => $dir,
+	'remoteExtPath' => 'UniversalLanguageSelector',
+	'dependencies' => array(
+		'mediawiki.util',
+	),
+	'messages' => array(
+		'uls-select-content-language',
+	),
+	'position' => 'top',
+);