- Update method to get the context body. Hopefully more reliable 🤞
- `with afar.run:` now gives a useful error message (missing location!) instead of running the code
- Add `run.context_body` attribute to hold a list of lines of the context body
- Add `later` location, such as `with run, later:`
- This is useful to get the context body, but not execute it
- `later` doesn't do much yet. I'll handle it later.
- Test running in a notebook via `nbconvert`
- Test PyPy with conda