sysutils/nitrogen: Update to 1.6.1
- Move to new home on GitHub
- Add LICENSE
- Switch to options helpers
- Reset maintainer due to the long timeout
Changes: https://github.com/l3ib/nitrogen/blob/1.6.1/ChangeLog
PR: 230206
Submitted by: Nathan <ndowens@yahoo.com> (based on)
Approved by: corentin@ralite.com (maintainer timeout, 4 months)