Preliminaries
You need to use this LiquidCrystal Library.
https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads
I believe I used version LiquidCrystal_V1.2.1.zip
It's been tested with Newliquidcrystal_1.3.5.
Installing.
Place or symbolically link the 'libraries/washer' directory to your sketchbook libraries folder. Unzip the Newliquidcrystal directory and place its inner (main directory) in your sketchbook libraries folder.
Start up your Ardunio IDE. Open wash_proj/wash_proj.ino.