Update gps example script to use new api.
Add ADC support and configure it for RuuviB1.
Merge branch 'master' of github.com:RuuviTracker/ruuvitracker_fw
ADC: configure adc properly for ruuvib1. Add example scripts for reading battery and high input voltages.
Merge pull request #22 from thauta/master

ADC: add preliminary adc support for RuuviB1. Add example scripts for reading adc values.