etcdhttp: encode MembersCollection properly
etcdserver: log member ID as hex string
Merge pull request #1490 from jonboulle/1490

Logging member ID as int
Merge pull request #1459 from bcwaldon/member-list

etcdhttp: encode MembersCollection properly
raft: fix a incorrect in testMaybeAppend
Merge pull request #1495 from xiangli-cmu/fix_raft_test

raft: fix a incorrect in testMaybeAppend
client: fill in MembersAPI
etcdctl: impl members commands