Fixing issues with spring loaded adding.

- Delaying until items are added
- Showing bg when going into spring loaded mode
- Fixing regression where dropping widgets on full page would not trigger a notification
- Fixing regression on tablet where pages were no longer being rotated or shown

Change-Id: Iadc0c406f0c065c5029addea1abfee395eed81b9
diff --git a/res/layout-port/launcher.xml b/res/layout-port/launcher.xml
index db074d7..73051ba 100644
--- a/res/layout-port/launcher.xml
+++ b/res/layout-port/launcher.xml
@@ -29,7 +29,8 @@
         android:layout_height="match_parent"
         launcher:defaultScreen="2"
         launcher:cellCountX="4"
-        launcher:cellCountY="4">
+        launcher:cellCountY="4"
+        launcher:pageSpacing="@dimen/workspace_page_spacing">
 
         <include android:id="@+id/cell1" layout="@layout/workspace_screen" />
         <include android:id="@+id/cell2" layout="@layout/workspace_screen" />