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
6 files changed