For Django 1.6: new test discovery plus reverse now does urlquote(). My base64 keys were padded with '=' and these got quoted when doing a reverse to generate the URL. So changed the test to look for a quoted version of the key. This will change the URLs sent to users, but I believe it will all be taken care of by Django.

#frmbody {
	padding: 10px;
	background-color: #FFF;
	border: 1px solid #CCC;
}

.frmRow {
	margin-bottom: 10px;
}

#templatesrc {
	border: none;
	width: 320px;
	height: 240px;
}

.title {
	padding-bottom: 5px;
}

.mceActionPanel {
	padding-top: 5px;
}