ZK-1931/javazab — pull request #122 by EasonLiao (2014-08-14 22:35:10+00:00)
Title: log message cleanup

```
Received COMMIT type: COMMIT commit { zxid { epoch: 1 xid: 2 } }
```
can be:
```
Received commit { zxid { epoch: 1 xid: 2 } }
```