Core: Bump timeouts to stabilize doc ready test

The "document ready when jQuery loaded asynchronously" test fails all the time
in iOS7 and sometimes in other browsers. Bumping the timeouts *might* help
these other browsers to be less flakey here.

test/data/core/dont_return.php

@@ -1,3 +1,3 @@
<?php
sleep(10000);
sleep(100000);
?>

test/data/core/dynamic_ready.html

@@ -28,7 +28,7 @@
		timeoutId = setTimeout(function () {
			timeoutFired = true;
			window.parent.iframeCallback( false );
		}, 3000);
		}, 10000);
	});
</script>
</body>