remake: bump from version 3.81+dbg-0.2 to 3.82+dbg-0.6

This version needs readline. And the license is GPLv3. Also, add
meta.platforms and meta.maintainers attributes.
Merge pull request #667 from bjornfor/remake

remake: bump from version 3.81+dbg-0.2 to 3.82+dbg-0.6