[WIP] Some Improvements

- Better multi-monitor support (still not perfect).
- Loading config from a file, making it possible to update settings without cinnamon restart.
- Adding Windows 7 style switcher.
 - Based on your old win7switcher, but changed a couple of bits to make the front->back and vice versa animation work smoothly.
 - extends the normal switcher, so not too much work to maintain.
- Bringing all cinnamon versions together, so that updates also get inside version 1.4 and older.
 - I have tested it on mint 13 live dvd (which has cinnamon 1.4), gonna test it on older versions soon.

It might even be possible to merge the gnome-shell version into it as well, making a lot of duplicate work obsolete.
Not sure if that is a good idea tho, since gnome-shell is not known for keeping an api.

Let me know what you think.