ditsing/ruaft @ 2d7d42c1f231dcebae6b2f9a0c72ced46f418b07

Jing Yang 32fb95c79d Give up the log lock before killing a raft instance.		%!s(int64=5) %!d(string=hai) anos
..
persister	fa74454870 Implement persister.	%!s(int64=5) %!d(string=hai) anos
mod.rs	32fb95c79d Give up the log lock before killing a raft instance.	%!s(int64=5) %!d(string=hai) anos