* Split JPA Outbound Gateway into "updating-outbound-gateway" and "retrieving-outbound-gateway"
* INT-2573 Need a mechanism to have the max-number-of-results attribute for JPA outbound gateway and inbound adapters
* Cleanup
* Add more comments
* Add unit tests
For reference see: https://jira.springsource.org/browse/INT-2573
INT-2582 - Fixed comment + fixed spelling in assertion
INT-2582 - Throw MessagingException instead of MessageHandlingException
INT-2582 - Code review changes
* Changed bean naming strategy for jpaExecutor to `Id of JPA Component + ".jpaExecutor"`
* added tests
* changed `delete-per-row` XML attribute to `delete-in-batch`
* changed `deletePerRow` property in JpaExecutor to `deleteInBatch`
* delete-in-batch defaults to "false" to follow the default in Spring Data JPA
* fixed junit test
INT-2571: Suggested changes made and added an additional test case
INT-2571: Fix the javadoc generation warning in the class
INT-2571 Polishing
Factor out common code into determineParamterSource()
Integration test for <jpa:outbound-channel-adapter> inside <chain>.
Polishing JpaOutboundChannelAdapterTests for increase execution speed.
Removal version from XDS URLs from the affected contexts.
For reference see: https://jira.springsource.org/browse/INT-1983
* INT-2435 - Add the ability to automatically resolve the entity-class from the payload as fallback
* Add <transactional/> support for **Jpa Outbound Gateway** and **Jpa Outbound Channel Adapter**
* Merging Documentation from: https://github.com/amolnayak311/spring-integration/blob/INT-2440/src/reference/docbook/jpa.xml
* Provide JPA Tests against Hibernate, EclipseLink and OpenJPA
* Improve Documentation
* Remove trailing white-space, convert white-space to tabs, remove @transactional from DefaultJpaOperations
* INT-2440 Adding the documentation for the JPA adapters
INT-1983 - Code Review based Fixes
* Fix indentation in XML Schema
* Remove *transactional* sub-element definition from JPA Inbound Channel Adapter in XML Schema
* Fix enumeration *gatewayType*
INT-1983 - Based on Code Review
* Remove '/** {@inheritDoc} */' from DefaultJpaOperations
* Remove JavaDoc parameters that don't contains details
* Cleanup *JpaUtils*
* Remove "transaction-manager-ref" from *spring-integration-jpa-2.2.xsd*
* Cleanup *spring-integration-jpa-2.2.xsd*
* Provide documentation to *EclipseLinkJpaOperationsTests* on how to run tests in IDE
* Provide documentation to *OpenJpaJpaOperationsTests* on how to run tests in IDE
* Refactor JPA Reference Doc Chapter (work in progress)
INT-1983 - Code Review: provide better JavaDoc
