Add basic support for dir and lang attributes for autonyms

Added a util function for getting the language's direction.

Added lang and dir attributes for every language item in the list.

src/jquery.uls.data.utils.js

@@ -339,6 +339,15 @@
 		return $.inArray( $.uls.data.script( language ), $.uls.data.rtlscripts ) !== -1;
 	};
 
+	/**
+	 * Return the direction of the language
+	 * @param string language code
+	 * @return string
+	 */
+	$.uls.data.getDir = function( language ) {
+		return $.uls.data.isRtl( language ) ? 'rtl' : 'ltr';
+		};
+
 	/**
 	 * Returns the languages spoken in a territory.
 	 * @param string Territory code