To setup whole thing:

• Download and unpack Lulzbot's version of Arduino IDE. Linux version is in this repo.
• Copy files from ArduinoAddons/Arduino_1.x.x/hardware to hardware folder in arduino IDE folder.
• Copy files from ArduinoAddons/Arduino_1.x.x/libraries to libraries folder in arduino IDE folder.
• Connect to printer via USB cable.
• Run arduino IDE.
• Open Marlin_2015Q2_TAZ5/Marlin_2015Q2_TAZ5.ino
• Upload firmware to printer.