implement queryRaw in CodeFragmentDao
[BUG_FIX] a bug in queryRaw of CloneClassMappingDao was fixed
[BUG_FIX] a bug in queryRaw of CloneClassDao was fixed
implement getWithCloneClassId in CodeFragmetnDao
[BUG_FIX] a bug related to auto refreshing was fixed
implement queryRaw in CodeFragmentMappingDao
implement queryRaw in FileChangeDao