redis.go add code to process nil response
Merge branch 'master' of https://github.com/aglo/holmes
add out info in processing
Refactor:change short conn to long conn
update filter
src/holmes/redis.go添加注释
新建UserAgent匹配功能的文件src/holmes/ua_regexp.go
src/holmes/main.go添加多线程支持，初始化UserAgent正则表达式
src/holmes/main.go格式化
src/holmes/filter.go修改：添加UserAgent过滤器
Conflicts:
	src/holmes/filter.go
Merge pull request #11 from bambooZhou/master

添加IP，URI，UserAgent，Reponse Code过滤器