refs: TryGhost/Toolbox#147
* Replaces all references to isIgnitionError with isGhostError
* Switches use of GhostError to InternalServerError - as GhostError is no longer public
There are places where InternalServerError is not the valid error, and new errors should be added to the @tryghost/errors package to ensure that we can use semantically correct errors in those cases.
commit 9c498697c9
issue https://github.com/TryGhost/Team/issues/694
`process.env.npm_package_version` is only filled when Ghost is started via npm scripts, so it would have been empty when starting Ghost using `node index.js`
no issue
- in the near future, non-Ghost Ignition type errors will be coming into
Sentry
- because they don't have a statusCode, they'll be rejected
- we want to detect if they're non-Ghost and still deal with them
* moved `server/config` to `shared/config`
* updated config import paths in server to use shared
* updated config import paths in frontend to use shared
* updated config import paths in test to use shared
* updated config import paths in root to use shared
* trigger regression tests
* of course the rebase broke tests
- added core/shared to watched folders in grunt
- moved sentry to shared
- moved express initialisation to a shared file
- always set trust proxy + sentry error handler
- use this new express init everywhere, and remove duplicate trust proxy and sentry error handler code
