add log and comment for bean
Merge remote-tracking branch 'cnnic/dev' into new

Conflicts:
	rdap-webapp/src/main/java/cn/cnnic/rdap/service/IdentityCheckService.java
	rdap-webapp/src/main/java/cn/cnnic/rdap/service/impl/IdentityCheckServiceImpl.java
Merge pull request #293 from warmdawn/dev

add logger and comment for bean