TAJO-605: Rename Options to KeyValueList. (jinho)
TAJO-795: PlannerUtil::joinJoinKeyForEachTable need to handle theta-join. (jaehwa)
TAJO-810: Update Tajo site for 0.8.0 release. (hyunsik)

This closes #5
TAJO-812: Some methods of TajoDatabaseMetaData should result in an empty tuple list instead of SQLFeatureNotSupportedException.

This closes #6
TAJO-800: CLI's meta command should be aware "TABLE_NAME" style. (Hyoungjun Kim via hyunsik)
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/tajo into CodeGen
TAJO-813: CLI should support comment character with multi-line query. (Hyoungjun Kim via hyunsik)
TAJO-820: Add missing license header to 0.8.0 release announcement. (hyunsik)
Add between clause.
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/tajo into CodeGen
Removed the case where the length of char type is 1.
add function layout.