[Ayatana] Alt+Tab Window Switcher: Mouse control, titles; Create a window switcher like in gnome shell overview;

[sachit daniel <staticd.growthecommons@xxxxxxxxx>]

0)Heavily inspired by Gnome shell that comes with ubuntu 11.10.
Please try it out if you haven't. Waaay smoother and more intuitive than unity for window switching and workspace management( Alt+ Tab and the overview switcher you get when pressing super/TLSC)

1)Alt + Tab switcher:

1.a)switcher ignores all mouse input: proposed changes:
i) Mouse over expansion of app icons to their windows
ii)click to choose
iii)click out of area (even while holding down alt + tab) to quit switcher and remain on the same window.

1.b)Previews alone are insufficient to quickly choose between windows. 
It would be useful if the titles of windows were also provided in the list.

2)We also need a mouse-only switcher in the style of the gnome shell overview switcher.
Required design features:
a)mouse only manipulation with launcher on dock.
b)Quick access w/o clicking: hot corner maybe TRSC/BLSC
c)Integrated Workspace functionality: drag and drop between workspaces, choose workspace and choose _windows_ (NOT APPS) all in one interface (again see gnome shell)
(other features- box around current active window, mouse only exit from chooser, window titles below preview)