TAJO-490: Tajo can't use 'dfs.nameservices' based on namenode ha mode.
TAJO-490: Tajo can't use 'dfs.nameservices' based on namenode ha mode.

gruter/tajo-cdh,yeeunshim/tajo_test,hyunsik/incubator-tajo,hyunsik/incubator-tajo,yeeunshim/tajo_test,yeeunshim/tajo_test,gruter/tajo-cdh,hyunsik/incubator-tajo,gruter/tajo-cdh,yeeunshim/tajo_test,apache/incubator-tajo,gruter/tajo-cdh,apache/incubator-tajo,apache/incubator-tajo,apache/incubator-tajo,hyunsik/incubator-tajo