* ban to use 'channel' and 'request-channel' attributes for 'outbound-channel-adapters' and 'outbound-gateways' when they are declared inside the `<chain>`
* fix usage of `<request-handler-advice-chain>` for components when they are declared inside the `<chain>`
* ban to use `<request-handler-advice-chain>` for 'outbound-channel-adapters' when they are declared inside the `<chain>` don't implement `AbstractReplyProducingMessageHandler`
* refactor `IntegrationNamespaceUtils` to use `BeanDefinition` instead of `BeanDefinitionBuilder` for 'advice-chain' parsing
* tests for new logic for 'channel' and 'request-channel' attributes within `<chain>`
* tests for new logic for `<request-handler-advice-chain>` within `<chain>`
* fix failed test on slow machine
* fix `SysLogTransformer` tests
For reference:
https://jira.springsource.org/browse/INT-2718https://jira.springsource.org/browse/INT-2721https://jira.springsource.org/browse/INT-2719
INT-2718 Polishing