add new script to toggle visibility of nested list items.
call hideNestedItems(), giving it the parent list to toggle and the <a> element that performs the toggle

Change-Id: I6f1ee74b957f88c23550145c6ed057d8e7797c99
diff --git a/tools/droiddoc/templates-sdk/assets/css/default.css b/tools/droiddoc/templates-sdk/assets/css/default.css
index 6e72a38..89ef09d 100644
--- a/tools/droiddoc/templates-sdk/assets/css/default.css
+++ b/tools/droiddoc/templates-sdk/assets/css/default.css
@@ -2648,6 +2648,22 @@
 }
 
 
+/* hide nested list items; companion to hideNestedLists() */
+.hide-nested li ol,
+.hide-nested li ul {
+  display:none;
+}
+
+a.header-toggle {
+  display:block;
+  float:right;
+  text-transform:uppercase;
+  font-size:.8em !important;
+  font-weight:normal;
+  margin-top:2px;
+}
+
+
 /* -----------------------------------------------
 good/bad example containers 
 */