Updated FingerControl.py to use newer API.

I have updated FingerControl.py to use the latest version of the API, the docs can be found in the HTML file within the SDK called: docs/Languages/Python/Guides/Leap_Touch_Emulation.html

I would really like to see this feature perfected better, it currently works, but the resolution is not automatically detected, and it would be nice to have the click gesture rather than pressing the virtual screen.  Let me know if there is more I can do to get this ball rolling, I am willing to contribute more as well to make this a great tool for the Linux desktop.