TAJO-1205: Remove possible memory leak in TajoMaster. (jinho)

Closes #265
TAJO-1208: Failure of create table using textfile on hivemeta. (jinho)

Closes #270
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
TAJO-1190: INSERT INTO to partition tables may cause NPE.

Closes #250
TAJO-1183: Keep command execution even with errors. (Jaewoong Jung via hyunsik)

Closes #266
TAJO-1222: DelimitedTextFile should be tolerant against parsing errors.

Closes #277
TAJO-1220: Implement createStatement() and setEscapeProcessing() in  JdbcConnection. (YeonSu Han via hyunsik)
TAJO-1223: Wrong query verification against asterisk and more expressions in select list.

Closes #279