Merge pull request #196 from ainilife/biz

ignore some unit tests
Merge pull request #195 from youyong205/biz

Biz
Merge pull request #197 from youyong205/biz

modify the cat api test
Merge branch 'biz' of https://github.com/dianping/cat into biz
Merge pull request #198 from ainilife/biz

more unit tests
add the test
update README.md and parent pom.xml
add more unit tests
Merge branch 'biz' of https://github.com/dianping/cat into biz
Merge branch 'biz' of ssh://code.dianpingoa.com/arch/cat into biz
fix  Program Static Analysis Problem
fix the test error
fix code analyzer of null
fix null statement
Merge pull request #200 from ainilife/biz

more unit tests
modify the unused null compare
方法调用低效的数字构造方法;使用静态valueOf代替;fixed
高危 - 在两个分支中使用了相同的代码
fix some other issue of sonar
fix 不要使用printStackTrace