pip release 10.0.0b1 (2018-03-31) removed support for uninstalling
projects which have been installed using distutils[1]. Thus a possible
workaround is to ignore the distribution-provided packages.
[1]: https://pip.pypa.io/en/stable/news/#deprecations-and-removals
Fixes issue #469.
* Renamed verified to good
* Renamed no_data to bad
* Add failed status
* Remove unused data_not_verified
* Expose vetted status to API
* Simplify vetted status template markup
* Simplify vetted methods
* Utilize sass for vetted statuses
* Add option to undo vetting
Corey Shields