Use the new ServiceRegistry interface

Creates a new EurekaRegistration object that aggregates classes needed
for a single registration.

-additional refactoring from changes in s-c-commons

This reverts commit 90d6490f.

This reverts commit 088afa6d.

This reverts commit 3c1a23e7.

This reverts commit 258e53a4.

The jackson version needs to be explicit (not in parent potentially)
and there is a weirdness with @RequestMapping in Spring 4.3

Fixes gh-710