Update jquery.uls from upstream

* Focus ULS button when language menu is closed with Escape
* Localization updates for ba, bew, nap, tzm, xmf

Updating to:
b686fe6170

Change-Id: I14775228a66a40bbb2e490537275fffc6bc4309c

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

@@ -328,6 +328,7 @@
 
 			if ( e.keyCode === 27 ) { // escape
 				this.cancel();
+				this.$element.focus();
 				e.preventDefault();
 				e.stopPropagation();
 			}