TAJO-746: Implements function COALESCE. (hyoungjunkim via hyunsik)
TAJO-711: Add Avro storage support. (David Chen via hyunsik)
TAJO-765: Incorrect Configuration Classpaths. (jinho)
Merge branch 'branch-0.8.0' of https://git-wip-us.apache.org/repos/asf/tajo

Conflicts:
	tajo-dist/src/main/bin/tajo