refs #9178
* Add eslint deps, remove old lint deps
* Add eslint config, remove old lint configs
* Config for server and tests are different
* Tweaked rules to suit us
* Fix linting in codebase - lots of indent changes.
* Fix a real broken test
no issue
- Upgraded ghost-ignition
- Use debug from ghost-ignition everywhere in the code base
- Remove debug dependency
- Fixed random typo in Gruntfile.js
ServiceWorkers can only control the scope from which they have been served. Our service workers live, like all other files, in an `asset` folder - and could in theory only work on other files in there.
This commit fake-serves our service workers from `/ghost/`, thus allowing them to give everything offline powers.
