Merge pull request #59 from coreos/master

Fix Election timeout
Merge pull request #60 from coreos/master

create new channel before start heartbeat
Merge pull request #61 from coreos/master

Fix two problems
Merge pull request #62 from coreos/master

Remove the lock in init()
Add HTTPTransporter.
Merge branch 'master' of https://github.com/benbjohnson/go-raft into http-transporter

Conflicts:
	peer.go
	server.go
HTTP Transporter fixes.
Use client.Post().
Remove trace logging.
Merge pull request #63 from benbjohnson/http-transporter

Default HTTP Transporter
add encoding speed test and gofmt