Change log:
1. PeerServer
- estimate initial mode from its log through removedInLog variable
- refactor FindCluster to return the estimation
- refactor Start to call FindCluster explicitly
- move raftServer start and cluster init from FindCluster to Start
- remove stopNotify from PeerServer because it is not used anymore
2. Etcd
- refactor Run logic to fit the specification
3. ClusterConfig
- rename promoteDelay to removeDelay for better naming
- add SyncClusterInterval field to ClusterConfig
- commit command to set default cluster config when cluster is created
- store cluster config info into key space for consistency
- reload cluster config when reboot
4. add StandbyServer
5. Error
- remove unused EcodePromoteError
for i in github.com/BurntSushi/toml github.com/coreos/go-etcd/etcd github.com/coreos/go-log/log github.com/gorilla/context github.com/rcrowley/go-metrics bitbucket.org/kardianos/osext github.com/coreos/go-systemd/journal github.com/coreos/raft code.google.com/p/goprotobuf/proto ; do goven -copy -rewrite $i; done
