use ConfigDumper
redo tests in dztest
add mailmap
fix author = kentnl
drop git_versions
v1.001000

 [00 Minor]
 - Internals changed.
 - Tests redesigned.
 - metadata

 [Dependencies::Stats]
 - Dependencies changed since 1.000002, see misc/*.deps* for details
 - develop: +1 (suggests: ↑1)
 - runtime: +1
 - test: +1 -4 (recommends: ↑1)

 [Internals]
 - dump_config implemented in config_dumper

 [Metadata]
 - fix author = kentnl

 [Tests]
 - tests reimplemented in terms of dztest
post-release cleanup