add mailmap
fixup author metadata
Drop git_versions
Improve coverage
v0.001003

 [00 Trivial]
 - no code changes.
 - Fixup author metadata

 [Dependencies::Stats]
 - Dependencies changed since 0.001002, see misc/*.deps* for details
 - develop: +1 ↑1 (suggests: ↑2)

 [Tests]
 - Slight coverage improvement
post-release cleanup