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

webapp/web/siteAdmin/dataInput.jsp

@@ -0,0 +1,18 @@
+<%-- $This file is distributed under the terms of the license in /doc/license.txt$ --%>
+
+<% if (securityLevel >= loginHandler.EDITOR) { %>
+    <div class="pageBodyGroup">
+    
+	    <h3>Data Input</h3>
+	
+		<form action="editForm" method="get">
+		    <select id="VClassURI" name="VClassURI" class="form-item">
+		        <form:option name="VClassId"/>
+		    </select>
+		    <input type="submit" class="add-action-button" value="Add individual of this class"/>
+		    <input type="hidden" name="home" value="<%=portal.getPortalId()%>" />
+		    <input type="hidden" name="controller" value="Entity"/>
+		</form>
+		
+	</div>
+<% } %>