Partial Fix and Refactoring for JIRA issue SGF-236 enabling the <gfe:lookup-region/> nested element syntax to function properly.
Added additional assertions to the testDirectLookup test case asserting that the non-looked-up Customers and Customers/Accounts/Orders Regions do not exists as beans in the Spring context.
Fully fixes JIRA issue SGF-236 involving the Subregion bean names requiring a prepended forward slash when using the high-level region XML namespace abstractions, like gfe:replicated-region, vs. the gfe:lookup-region element.