wam.js v1.1.2

Hello

2014-07-31: This repository is currently being transistioned from https://chromium.googlesource.com/apps/libapps/+/master/wam/. The official repo is now https://github.com/web-app-messaging/wam.js, but the built and release scripts aren't stable yet.

This is a JavaScript implementation of the Web Application Messaging protocol described in https://docs.google.com/a/chromium.org/document/d/1n_n2nGLMUXeKTrb48vRgfge5DGZ7hOs-Cosbj4IIPAQ.