Manual Device Topology

Needed to add the 'autocomplete' jQuery UI component because
it can do minLength=0 properly. Used the smoothness UI theme.

Added typeahead AJAX calls to support the topology searching.

Added new plugin and template for the topology editing page.

Netdisco/share/public/css/netdisco.css

@@ -27,6 +27,14 @@ body {
   width: 100%;
 }
 
+/* jquery ui autocomplete scrollable */
+.ui-autocomplete {
+  max-height: 200px;
+  overflow-y: auto;
+  /* prevent horizontal scrollbar */
+  overflow-x: hidden;
+}
+
 /* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
 /* various styles to adjust the hero box used for homepage + login */