Remove redundant AUTHORS file in favor of relying on .mailmap for keeping track of author names. Move older changelogs to release directory. Move release checklist to releases README. Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
Signed-off-by: Richard Scothern <richard.scothern@docker.com>