TAJO-673: Assign proper number of tasks when inserting into partitioned table. (jaehwa)
TAJO-936: TestStorages::testSplitable is failed occasionally. (jinho)
TAJO-904: ORDER BY Null first support. (Hyoungjun Kim via hyunsik)

Closes #70
TAJO-933: Fork some classes of Parquet as builtin third-party classes.

Closes #75
TAJO-20: INSERT INTO ... SELECT. (Hyoungjun Kim via hyunsik)

Closes #72
TAJO-945: Connecting to Tajo by JDBC driver failed with SQL Exception "Invalid JDBC URI". (Mai Hai Thanh via jihoon)
TAJO-953: RawFile should release a DirectBuffer immediately. (jinho)

Closes #79
Fixed wrong table syntax in sphinx doc.
 TAJO-956: CONCAT should be support multiple params and null param. (Hyoungjun Kim via hyunsik)

 Closes #81
TAJO-960: TajoCli's problem does not show the current status.

Closes #83
TAJO-955: Add database selection submit button in catalogview.jsp for text based browse. (Hyoungjun Kim via jihoon)
TAJO-961: TajoCli should exit when at least one query faces error while executing a SQL script. (hyunsik)

Closes #84
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/tajo into TAJO-PROFILE

Conflicts:
	CHANGES
	tajo-core/src/main/java/org/apache/tajo/engine/planner/physical/SortBasedColPartitionStoreExec.java
	tajo-core/src/main/java/org/apache/tajo/worker/TaskAttemptContext.java
	tajo-core/src/main/resources/webapps/admin/catalogview.jsp
	tajo-storage/src/main/java/org/apache/tajo/storage/StorageUtil.java