GUI -- Added onos.ui.addFloatingPanel() function.
- re-instated detail pane in topo2.js; triggered of non-zero selection state.
- single-select now requests details and displays them in detail pane.
- multi-select WIP.

Change-Id: I300a3dfd4d35abc82f832a172854c6aff50d8cd6
diff --git a/web/gui/src/main/webapp/index2.html b/web/gui/src/main/webapp/index2.html
index 03272e9..ca5b6a8 100644
--- a/web/gui/src/main/webapp/index2.html
+++ b/web/gui/src/main/webapp/index2.html
@@ -40,6 +40,7 @@
     <link rel="stylesheet" href="base.css">
     <link rel="stylesheet" href="onos2.css">
     <link rel="stylesheet" href="mast2.css">
+    <link rel="stylesheet" href="floatPanel.css">
 
     <!-- This is where contributed stylesheets get INJECTED -->
     <!-- TODO: replace with template marker and inject refs server-side -->
@@ -62,8 +63,9 @@
         <div id="view">
             <!-- NOTE: views injected here by onos.js -->
         </div>
-        <div id="overlays">
-            <!-- NOTE: overlays injected here, as needed -->
+        <div id="floatPanels">
+            <!-- NOTE: floating panels injected here, as needed -->
+            <!--       see onos.ui.addFloatingPanel             -->
         </div>
         <div id="alerts">
             <!-- NOTE: alert content injected here, as needed -->