Merge remote-tracking branch 'private/issue/182' into private-0.2-develop
Merge remote-tracking branch 'private/issue/183' into private-0.2-develop
Fixed bug (#163).

Releasing cache lock did not work when ThunderGate importer will exit will retryable.
Added -D serializeFlows option to yaess-batch.sh (#184).
Merge remote-tracking branch 'private/issue/163' into private-0.2-develop
Merge remote-tracking branch 'private/issue/184' into private-0.2-develop
Modified release-notes for ver 0.2.6 (#142).

Added description #184.
Merge branch 'issue/142' into private-0.2-develop
DSL compiler generates cleanup stage client (#154).
Merge remote-tracking branch 'private/issue/154' into private-0.2-develop
Supported cleanup phase (#154).
Merge remote-tracking branch 'private/issue/154' into 0.2-develop
Modify hadoop-execute.sh to remove tmp dir when the job exited successfully (#154).
Add index action (#154).
Merge remote-tracking branch 'private/issue/154' into 0.2-develop
Fix 'info' response not to send 500 InternalServerError when the job failed (#154).
Merge remote-tracking branch 'private/issue/154' into 0.2-develop
Fix status to 'completed' when the job failed (#154).
Merge remote-tracking branch 'private/issue/154' into 0.2-develop
Added comment template for YAESS jobqueue (#154).