new plugin "collapse" for collapsible lists and "accordion" like support

docs/assets/css/docs.css

@@ -473,3 +473,19 @@ h2 + table {
   }
 }
 
+#accordion dt a{
+  display:block;
+  padding: 9px 15px;
+  line-height: 1;
+  background-color: whiteSmoke;
+  border: 1px solid #EEE;
+  border-top-color: #fff;
+}
+
+#accordion dt:first-child a {
+  border-top-color:#eee;
+}
+
+#accordion dd p {
+  padding: 10px;
+}