Ruby TypeScript
This is a wrapper that uses the TypeScript developed by Microsoft.
That is, it runs TypeScript as a separate process to compile things.
Dependencies
You must have TypeScript installed (i.e. you can run the command tsc).
Alternatively, you can set the TYPESCRIPT_SOURCE_PATH environment variable to the location
of the tsc script (e.g. ~/.npm/typescript/1.1.0-1/package/bin/tsc) and it'll use that through node.