Test clean.  Removes hacked in fixed values from code.  Updates window cropper to use a default /2 method to find quarters.  Uses "RMagick" in require (case sensitive) to avoid include warnings.  Stubs an ocr parser.
Translates thing.rb into an example tested by rspec, see Sqed#text_from_quadrant.  Remove non-relevant code from window_cropper and moves it to quadrant_parser.
Provides some tuning examples using ImageMagick to preprocess the image for OCR.