Bump sass-rails from 5.0.6 to 5.0.7
Bump sass-rails from 5.0.6 to 5.0.7

Bumps [sass-rails](https://github.com/rails/sass-rails) from 5.0.6 to 5.0.7.
- [Release notes](https://github.com/rails/sass-rails/releases/tag/v5.0.7)
- [Commits](https://github.com/rails/sass-rails/compare/v5.0.6...v5.0.7)
rdunlop/unicycling-registration,rdunlop/unicycling-registration,rdunlop/unicycling-registration,rdunlop/unicycling-registration