Add test runner docs, internalize script references (#107)

Merge 9d69956 into 0996667

Merge 2b91476 into 0996667

Update to latest runtime (#106)

- Bump runtime library to latest version

Merge ae15643 into e337f34

Update to latest runtime (#105)

- Bump runtime library to latest version
- Bump compiler tool to latest version

Merge 305c075 into ee4b851

 Update to latest runtime (#104)

- Bump runtime library to latest version
- Bump compiler tool to latest version

Notes: the compiler integration tests reference the runtime library that's packaged with ghul-test, so we need to take the runtime package update here before the compiler can also take it.

Merge 2a7b0d7 into c188f64

 Update to latest runtime (#103)

- Bump runtime library to latest version
- Bump compiler tool to latest version

Notes: the compiler integration tests reference the runtime library that's packaged with ghul-test, so we need to take the runtime package update here before the compiler can also take it.