[Issue #585] Correcting testCanMapAnEntityWithAnAbstractVersionedParent, by splitting out the mapPackage call into a different test in MorphiaTest
[Issue #585] Reproduced the problem reported in the issue via failing tests; fixed the problem so the tests pass; refactored TestVersionAnnotation so the inner classes are in their own package for so when we map that package we don't get a whole host of unintended entities as well.