Alternate scaling using GD is implemented now; images will be scaled with ImageMagick if enabled and working; else, GD will be used. No UI changes to speak of, but a check in the installer will be added in a later commit

.mceItemFlash {
	border: 1px dotted #cc0000;
	background-image: url('../images/flash.gif');
	background-position: center;
	background-repeat: no-repeat;
	background-color: #ffffcc;
}