删除强依赖log4j的MonitorLog类

删除强依赖log4j的MonitorLog类
Update README.md
Update metaServer.sh

如果pid的值是空字符串，表示进程还没起来，这时候应该返回1.
Update metaServer.sh
Merge pull request #103 from allwmh/master

修改metaServer.sh，当意外的原因导致PID_FILE文件的内容为空的时候 错误判断metaq进程已启动
Merge pull request #93 from kimmking/master

add producer for dotnet using zookeeper.net
Merge pull request #97 from hengyunabc/master

删除强依赖log4j的MonitorLog类
Revert readme
并发注册消费者会产生重复id的消费者，修改生成消费者id的方式为uuid
Merge pull request #106 from gongweijun86/master

并发注册消费者会产生重复id的消费者，修改生成消费者id的方式为uuid
Fixed JournalTransactionStore#checkpoint,thanks to @platformregister
Merge pull request #1 from killme2008/master

Merge trunk