Multitude of launcher behaviour changes.

- Merging widgets and shortcuts in widgets pane
- Removing legacy long press menu items (make it go straight to wallpapers)
- Removing old option menu (just making it point to wallpapers)
- Dropping user to workspace after adding an item (animations to be tweaked) or back to AppsCustomize only on failure/cancel

Change-Id: Ia73670ce76f321dc45defb27bb5a828764240ab4

src/com/android/launcher2/Workspace.java

@@ -3026,7 +3026,7 @@ public class Workspace extends SmoothPagedView
         final Runnable exitSpringLoadedRunnable = new Runnable() {
             @Override
             public void run() {
-                mLauncher.exitSpringLoadedDragModeDelayed(false);
+                mLauncher.exitSpringLoadedDragModeDelayed(true, false);
             }
         };