* Let Branch and Raw Endpoint return json error if not found
* Revert "RM RepoRefByTypeForAPI and move needed parts into GetRawFile directly"
This reverts commit d826d08577b23765cb3c257e7a861191d1aa9a04.
* more similar to RepoRefByType
* dedub-code
* API should just speak JSON
* nice name
Co-authored-by: zeripath <art27@cantab.net>