Actually add 0.11 testing to the list.
Fixed OSX Directions

The directions in `README.md` will not work unless you first install the `ejs` module.
General housekeeping to the project.

- Fixed broken, and removed unnecessary, entries from the .gitignore.
- Cleaned up the README, including code examples.
- Deleted the distracting TODO file.
- Migrated code generation into the build directory.
- Renamed the npm run gen command to codegen.