Limit the types of files that may be attached to requests.

document_root/css/courses/edit.css

@@ -142,3 +142,12 @@ ul#aceOutcomeList li div {
 ul#aceReinforcementList li {
     list-style-type: none;
 }
+
+#allowedFileTypes {
+	font-size: 90%;
+	background-color: #ccc;
+	border: 1px solid #000;
+	padding: 2px;
+	margin-top: 1em;
+}
+