Changed teensy loader with updated command

Minor fix: print new value when changing config

Added Hardware Timer (FTM) input source for Teensy platform

Update installation instructions

Fix InputCmpNode - it wasn't working because of off-by-one mistake

Minor: todo & exception text update

Added Wifi output to Particle platform.

Fixed travis

Added new platform: Particle Photon board.

Create LICENSE.txt

Added build status badge; update notes.

Update notes.

Updated libraries

Added testing framework

Updated comparator input to work on Teensy 3.0 - 3.6.