Improved key shortcuts

[kev007]

I'm loving Dexpot but i'm accustomed to switching desktops using the right control key and arrow keys but there seems no way to differentiate LCtrl and RCtrl! (Also, support for stuff like HP's quicklaunch buttons would be cool!)

I'm transitioning over from Ubuntu and sorta miss the very fluid transition, the deskcube provides decent animation but it seems to have a constant velocity (not very pleasing to the eye, but better than nothing) it'd be awesome if we could choose an easeOut algorithm.

All your effort is greatly appreciated, keep up the good work and regular updates!