Merge pull request #1 from hybridgroup/individual-pin-setup

Enables pins to be setup as PWM individually and released for digital IO afterwards.
Readme updates based on Thomas Sarlandie.
Merge pull request #3 from hybridgroup/individual-pin-setup

Added Pete back to contributors.
Merge pull request #2 from hybridgroup/refactor-feedback

Readme updates based on Thomas Sarlandie.
Fixes bug with pin mode not being setup everytime PWM is used, which causes a fresh restart of the OS to make them unusable.