graphics/povray37: Update to 3.7.0.8
- Fixes build with Clang 6
- Reset maintainer after not responding for > 6 months
- While here add license and sort variables
Changes: https://github.com/POV-Ray/povray/releases/
PR: 215473
Submitted by: Andrey Zholos <aaz@q-fu.com>, Chad Jacob Milios <milios@ccsys.com>
Approved by: bkoenig@alpha-tierchen.de (maintainer timeout, > 6 months)