Closes#3196
* adds `/roles/` endpoint
* is given the current user as context
* wraps everything in a canthis.browse.role
* gets all the available roles (should "Owner" be filtered out?)
* optional parameter: `permission=assign`. Gets all roles authenticated user could assign
* if we're not signed in, gives a "please sign in" (standard) error
* if we're signed in, but user is not in the context, gives a "there was no user in the context" error
* if the user is an "Author", gives a "there are no available roles to assign" error
* implemented hacky filter because when.js produces heisenbugs past 3.2.3 (when.filter not available)
* added extra fixtures to `permissions.json`. Might need a migration.
Caveats:
* there are no tests
* for some reason the setup functional test was failing for me locally
refs #3283, refs #2739, refs #3096
- Renames permissions which didn't follow bread
- Adds permissions for notifications, mail and tags
Still todo:
- wire up the new permissions where they are needed
- add permissions for roles
refs #2600, refs #2379
Refactoring fixtures to make permission management a little easier
- Separate fixtures into JSON file and split permissions fixtures from other fixtures
- make fixture migrations more robust by fetching objects, not relying on
ids and checking before adding
- changed owner fixture slightly to remove any confusion between the 'Owner' role and 'Ghost Owner' user.
- moved 003 fixture versions out of config into logic, possibly not a good
idea
- refactored permissions fixtures and added permissions_roles fixtures to
make it easier to read / add
