First commit: Mac host software

currently, time and date are read off connected uPPT, and displayed in
the UI
Battery Voltage outputting to UI

data incorrect for now
temperature data now goes to UI

Batt Voltage and Temperature are both incorrect data still
Added code for set date/time

not exactly working yet
fixed date/time information before it's sent to the uPPT

still doesn't seem to be pushing to the device correctly, but at least
the data is correct first
Correction

setting date and time now seems to work
Test LEDs button implemented and working

involved creating a sendGenericCommand method, so subsequent
single-byte commands to the PINPoint should work with no problems. Also
commented lots of things
Read Button diagnostic command works

involved writing a function to allow text output to the results console
in the diagnostics tab
added console message when Test LED button is pressed
Merge pull request #3 from nickavv/master

Lots of progress on Mac uPPT application