Pull request, back to sparkfun base.

Things that have happened since I forked from Bobbrez (that came from sparkfun after another jump):

- Added the possibility to check if we are connected to the network and reconnect if not connected (improved stability of joining process... I think)
- Added UDP mode, and helper method to read directly from the WiFly with a timeout (found it useful for OSC applications).
- Added configuration of sleep/wake timers of the WiFly
- Added example for Thingspeak Internet of Things service.
- Added example for Notify My Android service.