Added smartsensor variation checkboxes.

On smartsensor.brd and smartsensorPowered.brd.
Minor via shifting to accomodate text.
Standardized copyright and "Design by" info among boards.
Fix uninitialized woke_timeout and not clearing changed sets

Should fix problem where bogus recv calls need to be inserted
Re-port xbee accumulator code.
Add NDL3_PORT_UNRELIABLE option.
Increase number of NDL3 ports to 5.
Add FAST and CONFIG ports.
Disconnect send_data function on XBee disconnect.