closes: https://github.com/TryGhost/Toolbox/issues/193
- Our Casper fixture was several years out of date.
- I'd already updated the ghost-api to point to the latest API version, which was the main difference
- This makes sure the full fixture is up to date and correct, and therefore that we're truly testing if Ghost right now works
- It also adds instructions for how to update it in future
GOTCHA: the mock-express-style tests are failing if the API difference between test-theme and casper are different
- I've tried to look into why this is - it's something to do with the overridden route settings not working properly if the API version changes
- Given that we may not keep this style of testing AND we are definitely not keeping API versions, I'm ignoreing this for now
- To get around it, I'm setting both themes to be v4 API, so that Casper is exactly as in main
refs: https://github.com/TryGhost/Toolbox/issues/168
- Upgraded the remaining themes to be pinned to the canary API
- This required one minor fix because the edit URL has changed for authors in v4/canary
- I also ripped out everywhere that the theme ghost-api version was being pinned to canary, as this was unreliable and only happening in a few places
- It's also going to be unnecessary code as soon as we finish changing to only having one API version
