ditsing/ruaft @ af140e1c46aeae525f1c298811a65c317dd6962c

Jing Yang 32fb95c79d Give up the log lock before killing a raft instance.		%!s(int64=5) %!d(string=hai) anos
..
config	32fb95c79d Give up the log lock before killing a raft instance.	%!s(int64=5) %!d(string=hai) anos
agreement_tests.rs	fa74454870 Implement persister.	%!s(int64=5) %!d(string=hai) anos
election_tests.rs	fa74454870 Implement persister.	%!s(int64=5) %!d(string=hai) anos
persist_tests.rs	d7d18284fa Add the figure-8, unreliable test, and a serious bug fix.	%!s(int64=5) %!d(string=hai) anos