Moving the service stuff down

[Rod Widdowson]

As discussed on Friday I have moved the Service interface and base class
into java-support and the spring specific implementation into
spring-support.  For a while I thought that I wouldn't be able to get this
done for the next Alpha but it seems to have gone through OK today.

There are a couple of things to note/ask

Firstly, this is a pretty intrusive change to the configuration (since a
widely configured class has moved).  I have run the tests locally and I will
be watching Jenkins closely.   However I may have missed something..

Secondly other major consumer of the base class (apart from the
RealodableSpringService implementation) is the log back service.  We are now
in a position to move this down into java support.  

I have not done this since I am not convinced that this is a good idea, it
will a dependency on our particular choice of logging down into java-support
and the evidence in the POM is that we don't want to do this.

Thoughts?  Observations?

/Rod