Qunar standard initialization
Merge branch 'master' of git@github.com:airhuman/dbaccess.git into q_master

Add source files
remove DataUtil.java
because we don't need it Now.
Delete TestZkClient.java
because we don't need it Now.
new impl Qedis
delete no useful codes
update package and pom.xml
qunar->com.qunar
add zk5 server
和应钢讨论后，发现Storage模式下，不适合用business
因为 namespace 与 biz 是一一对应的!
add DbConfig impl
setServiceOrder to LIFO