Bump rspec from 3.4.0 to 3.7.0 (#2570)
Bump rspec from 3.4.0 to 3.7.0 (#2570)

Bumps [rspec](https://github.com/rspec/rspec) from 3.4.0 to 3.7.0.
- [Commits](https://github.com/rspec/rspec/compare/v3.4.0...v3.7.0)
zooniverse/Panoptes,camallen/Panoptes,zooniverse/Panoptes,camallen/Panoptes,zooniverse/Panoptes,zooniverse/Panoptes,camallen/Panoptes,camallen/Panoptes