Spinner Tests: Fix IE test failures by removing timing dependencies f…

…rom focus/blur tests.

tests/unit/spinner/spinner_core.js

@@ -94,11 +94,11 @@ asyncTest( "blur input while spinning with UP", function() {
 	function step2() {
 		value = element.val();
 		ok( value > 11, "repeating while key is down" );
-		setTimeout( function() {
+
+		element.bind( "blur", function() {
 			value = element.val();
-		});
-		element[0].blur();
-		setTimeout( step3, 250 );
+			setTimeout( step3, 750 );
+		})[ 0 ].blur();
 	}
 
 	function step3() {