+ 0.1.01 version of Cozir (archive purpose)
+ 0.1.02 Cozir (archive)
+ support for Arduino 1.x (SoftwareSerial)
+ 0.1.03 Cozir
+ added SetOperatingMode()
+ 0.1.04 Cozir
+ added history
+ changed CO2() to support larger values - uint32_t
+ added URL
+ reformatted layout