Updated monkey group's code.
included libraries and defined a constant for unused points. initailized all sensor readings.
Removed function to initialize pins in an array. Also removed data union and made it an array of long ints.
Began moving read functions around.  Deleted, then revived dedicated analog read functions.
Finished all the analog read functions. 

CO2 -------------- [A0]
Theremister -- [A1]
Humidity -------[A2]
UV -----------------[A2]
O3 -----------------[A3]
Implemented initial support for Adafruit Lux/Luminosity sensor. All code from setup() is in setupLUX(), all code from loop() is in readLUX().
Variable necessary for LUX calculations.
Merge branch 'master' of https://github.com/mganger/Balloon-2014
added setupLUX() to header file.