Improve output: distinguish between failed assertions (failures) and unexpected exceptions (errors), and print a filtered stack trace for any exception.

webapp/web/src/widget/templates/images/Tree/Tree.css

@@ -0,0 +1,36 @@
+
+.dojoTree {
+	font: caption;
+	font-size: 11px;
+	font-weight: normal;
+	overflow: auto;
+}
+
+
+.dojoTreeNodeLabelTitle {
+	padding-left: 2px;
+	color: WindowText;
+}
+
+.dojoTreeNodeLabel {
+	cursor:hand;
+	cursor:pointer;
+}
+
+.dojoTreeNodeLabelTitle:hover {
+	text-decoration: underline;
+}
+
+.dojoTreeNodeLabelSelected {
+	background-color: Highlight;
+	color: HighlightText;
+}
+
+.dojoTree div {
+	white-space: nowrap;
+}
+
+.dojoTree img, .dojoTreeNodeLabel img {
+	vertical-align: middle;
+}
+

webapp/web/src/widget/templates/images/no.svg

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 12.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 51448)  -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" [
+	<!ENTITY ns_svg "http://www.w3.org/2000/svg">
+	<!ENTITY ns_xlink "http://www.w3.org/1999/xlink">
+]>
+<svg  version="1.1" id="Layer_1" xmlns="&ns_svg;" xmlns:xlink="&ns_xlink;" width="15.433" height="15.433"
+	 viewBox="0 0 15.433 15.433" overflow="visible" enable-background="new 0 0 15.433 15.433" xml:space="preserve">
+<circle fill="none" stroke="#D02026" stroke-width="2" cx="7.716" cy="7.716" r="6.716"/>
+<line fill="none" stroke="#D02026" stroke-width="2" x1="3.02" y1="12.352" x2="12.639" y2="2.732"/>
+</svg>