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/AppsCustomizeTabHost.java

@@ -71,12 +71,6 @@ public class AppsCustomizeTabHost extends TabHost implements LauncherTransitiona
 
         setCurrentTabByTag(WIDGETS_TAB_TAG);
     }
-    void selectShortcutsTab() {
-        setContentTypeImmediate(AppsCustomizePagedView.ContentType.Widgets);
-        mAppsCustomizePane.setCurrentPageToShortcuts();
-
-        setCurrentTabByTag(WIDGETS_TAB_TAG);
-    }
 
     /**
      * Setup the tab host and create all necessary tabs.