add MetaUtil
delete GeoLocDesc.java
modify geolocation
modify hive.java show,modify,dropgeoloc to conn ruyi interface
Merge remote-tracking branch 'origin/zhuqihan' into caoruyi
modify the geolocation
modify bug
modify eqRoom,nodeAssignment to conn ruyi interface
Merge remote-tracking branch 'origin/zjw' into v0.2, add missing files.
rpc
Merge caoruyi's branch: geoloc
Merge zhuqihan's branch: DDL .g modification.