* Rework infra logic onto IntegrationProperties
The `Properties` bean has been deprecated since `5.5`
* Register a default `integrationGlobalProperties` as a `IntegrationProperties`
* Fix respective usages from the `Properties`
* * Remove unused constant from the `IntegrationContextUtils`
* * Fix language in the `whats-new.adoc`
Co-authored-by: Gary Russell <grussell@vmware.com>
Co-authored-by: Gary Russell <grussell@vmware.com>