I'm not very familiar with JavaScript and npm - looking for suggestions on how to make the package easier to use.

- Instead of calling .Print(), have the class extend EventEmitter (node builtin, https://github.com/primus/eventemitter3 is a good browser shim for the same API), with an event that fires once for each line that terminates with a newline.

- Hard mode of the above: Add streams functionality (node builtin, https://github.com/nodejs/readable-stream is an official browser shim for the same API), with output streams that operate on bytes instead of lines.

- Combine parser and printer into a single ES6 class (e.g. using `new Parser()` syntax, rather than the indirect object generation).

- In optional addition to the above, have .parse() return a Promise for the output (not the parsed program), with parsed programs stored on the Parser itself (and examinable via an additional class method).

- Change all method names to be in camelCase instead of PascalCase. Only classes (as instantiated using `new`, not just methods that generate class objects) get PascalCase.