1. We use PUT request to do a V2 join. So we should redirect a PUT request rather than a POST.
2. /admin only accept V2Join request. Send out V2Join instead of V1Join.
Snapshot can be tens of MB. We need to have a minute level timeout for sending snapshot.
We add a separate snapshot http client for snapshot request, which has 120s timeout.
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
fix(server/config.go): ensured params are changeable from config file and env
fix(server/server.go): removed unnecessary debug line
fix(server/timeout.go): removed a commented block
style(server/transporter.go): put explicit vars to replace timeout expressions
style(tests/server_utils.go): ran gofmt to clean up indenting
