Changes:
- Added support for SSO login with OpenID Connect #120 @ursinn
- Administrators users can now manage all other users unless the super-adminstrator (native
adminaccount) - Refactored and restructured the user/login class
- Prevented read-only users from creating/deleting groups and host profiles and lauching package updates operations
- Added a way to customize nginx listen port inside the container (default is 8080) for people running the container in
network=hostmode - Fixed #250
- Updated ChartJS library to the latest version
- Various UI fixes and improvements