I'm thinking I should've explained more in detail what this patch does. With window managers that implement a window list menu, like fvwm, after cycling using Alt+Tab, previous and new focused windows, both end in the front (currently cwm lets the previously focused window overlapped.) This is specially convenient when one of the windows is maximized.
To imitate this useful behavior this diff makes cwm to raise the previously focused window after releasing the Alt key, right before focusing and warping the pointer to the new chosen one. It's not my idea, I took it from WindowMaker.
