TAJO-1163: TableDesc should use URI instead of Path.

Closes #235
TAJO-1188: Fix testcase testTimestampConstructor in TestTimestampDatum. (DaeMyung Kang via hyunsik)
TAJO-1166: S3 related storage causes compilation error in Hadoop 2.6.0-SNAPSHOT. (jaehwa)

Closes #262
TAJO-1053: ADD PARTITIONS for HCatalogStore. (jaehwa)
TAJO-1209: Pluggable line (de)serializer for DelimitedTextFile.

Closes #1209
TAJO-1204: Remove unused ServerName class. (DaeMyung Kang via jaehwa)
TAJO-1165: Needs to show error messages on query_executor.jsp. (Jihun Kang via jaehwa)
TAJO-1119: JDBC driver should support TIMESTAMP type. (jaehwa)
TAJO-1095: Implement Json file scanner.

Closes #181
TAJO-1210: ByteBufLineReader does not handle the end of file, if newline is not appeared. (jinho)

Closes #272
TAJO-1211: Staging directory for CTAS and INSERT should be in the output dir.

Closes #274
Merge branch 'master' of http://git-wip-us.apache.org/repos/asf/tajo into index_support
Merge branch 'index_support' of http://git-wip-us.apache.org/repos/asf/tajo into TAJO-838_3

Conflicts:
	tajo-catalog/tajo-catalog-server/src/test/java/org/apache/tajo/catalog/TestCatalog.java
	tajo-core/src/test/java/org/apache/tajo/engine/planner/physical/TestBSTIndexExec.java
	tajo-core/src/test/java/org/apache/tajo/engine/planner/physical/TestHashSemiJoinExec.java