* Move Spring.main into SpringApplication.main
* User can bind command line or application.properties into
SpringApplication
* User can provide sources dynamically with --spring.main.sources
(a CSV list of class names, package names or XML resource locations)
* One side effect was to make DocumentMatchers stateless
[#52830829]
If JPA is used and the context is a webapp we add the OEMIV interceptor.
It can be switched off by the user declaring a bean of type OEMSIVI or
the corresponding Filter, or by setting spring.jpa.open_in_view=false.
[Fixes#52939983]
