Switch to Sub::Util
remove git_versions
Set AUTHOR=kentnl
add mailmap
v0.002000

 [00 Minor]
 - Switch to Sub::Util

 [Dependencies::Stats]
 - Dependencies changed since 0.001003, see misc/*.deps* for details
 - develop: +2 ↑1 -1 (suggests: ↑2)
 - runtime: (recommends: +1 -1)

 [Meta]
 - use kentnl for author
post-release cleanup