Update pwm write to use new driver value from 0-1 and convert in the adaptor to what the device needs.
Updated servo examples.
Change angleLimits param in servo examples for just limits.
Merge master into pwm-write-upd and fix conflict in adaptor.
Merge branch 'dev' into pwm-write-upd
Fix tests to work with new pwm/servo changes.
Merge pull request #26 from hybridgroup/pwm-write-upd

Pwm write upd