XD-862 Enabled jsonPath Support
XD-875 Shutdown admin-server cleanly
- Re-used the shutdownCleanly() on AdminServer stop()
- Fixed AbstractShellIntegrationTests' adminServer stop
 - Removed explicit adminServer stop() call that hangs
   as the container.stop() would have already stopped
   the admin server while closing its parent context
XD-813 Update BatchJobLocator on XD job removal
- When XD job is destroyed, the job name entry is removed from
  BatchJobLocator so that the Batch admin's launchable flag is set to false.
- Keep the 'isJobParameterIncrementable' flag in a separate table
  JOB_REGISTRY_INCREMENTABLES
  - Handle insert/update on subsequent job creation with same name
- Fixed BatchExecutionController's REST endpoints & jobName handling
- Moved HSQLServerBean, Batch support classes  & registry schema sql
  out of dirt.plugins.job package
- Fixed tests to use test specific hsqldb properties when loading batch.xml

- Upgrade hsqldb version to 2.3.0 and exclude it from
  spring-batch-admin & spring-data-hadoop projects

- Moved REST endpoint 'batch/executions/{jobName}'
  to 'batch/jobs/{jobName}/executions'

XD-813 Fix tests
- set default test hsqldb database
- Modify context close() on few tests
XD-877 Fix Taps When Output Channel is Proxied

XD-877 Allow taps to be added to proxied output channels

Polishing
 - remove unnecessary null test
 - add test case
XD-689 - MessageBusSupport uses Kryo serialization

XD-828 renamed Bridge to Binding

XD-828 - Renamed transform- methods to  transformPayloadForConsumer and transformPayloadForProducer

XD-689 fixed a threading issue. Now new Kryo instance for each message operation

XD-689 - Refactored to extract Serializer interfaces and extend core spring De/Serializer

XD-689 renamed KyroAbstractSerializer to KryoAbstractSerializer

XD-689 - Added Codec Interfaces and DI for MessageBusSupport

XD-689: minor changes to address MF comments

XD-689 - removed an extraneous line of code

XD-689: fixed Copyright headers and removed null OutputStream option