This is a small portion of zxing, including only what's required
to generate QR codes.
Pulled from https://github.com/zxing/zxing on Jan. 4, 2016,
rev 4e3abafe3008e02695f894eccf05f8257fca4ee9 dated Dec. 9, 2015.
Contains only the files we need.
Unmodified.
License: Apache 2.0
