Changed pin numbers so that they are indexed from 0-7 rather than 1-8
updated readme to point to official documentation
updated class descriptions to reflect led numbering change
fixed inputitem value bug and updated led initialisation
fixed switch_number bug
removed some constants that were no longer needed
added port initialisation switch so that you can turn off board-reset when using two instances of the pfio
updated readme, telling people to go to the other repos