Update jquery.uls from upstream

Updating to
31696b4074

Changes:
* Set maximum length of the search box to 40.
* Fix event object passing in language selection (Bug T189582).
* West Armenian localization.
* Credits update.

Change-Id: I1a5c70fea849a7e217b02cdf740ada0050a9f822

lib/jquery.uls/src/jquery.uls.core.js

@@ -34,6 +34,7 @@
 						<input type="text" class="uls-filterinput uls-filtersuggestion"\
 							disabled="true" autocomplete="off">\
 						<input type="text" class="uls-filterinput uls-languagefilter"\
+							maxlength="40"\
 							data-clear="uls-languagefilter-clear"\
 							data-suggestion="uls-filtersuggestion"\
 							placeholder="Search for a language" autocomplete="off">\
@@ -287,11 +288,12 @@
 		/**
 		 * On select handler for search results
 		 * @param {string} langCode
+		 * @param {Object} event The jQuery click event
 		 */
-		select: function ( langCode ) {
+		select: function ( langCode, event ) {
 			this.hide();
 			if ( this.options.onSelect ) {
-				this.options.onSelect.call( this, langCode );
+				this.options.onSelect.call( this, langCode, event );
 			}
 		},
 
@@ -405,6 +407,8 @@
 		// Used by LCD
 		languageDecorator: undefined,
 		// Used by LCD
+		noResultsTemplate: undefined,
+		// Used by LCD
 		itemsPerColumn: undefined,
 		// Used by LCD
 		groupByRegion: undefined,