Dyson exporter/importer

[omgftw]

Allow users to take a Dyson module and convert it to a Java (and other langs) app using ASTs. This would allow user a no-risk opt-in via a fallback strategy. If, for instance, something the user needed wasn't yet supported by dyson, they could convert the code to Java Selenium.

Potentially try parsing out tests into dyson modules to allow easy migration of existing code, but this would be significantly more difficult that exporting.