JIRA: https://jira.springsource.org/browse/INT-3314
Add to `ServiceActivatingHandler` `beanFactory` population code for the `MessageProcessor` delegate
INT-3314: Populate `BF` to `HValueMProcessor`s
Make `XPathExpressionEvaluatingHeaderValueMessageProcessor` as `public`
INT-3314: Populate `BF` to `HE.messageProcessor`
INT-3314: Add `BF` `NPE` protection
INT-3314 XPath Header Enricher Test
Add a test that verifies the `BeanFactoryTypeConverter` is used
(convert to a TimeZone object).