Final Step of <Link> references conversion.
1 - refined hook for the before event in the unmarshaller
2 - string munging to suitable handle exports as well as RESTful APIs
3 - added back pointers in LocalTimeParameters and ReadingType
Forgot to add new RetailCustomerAdaptor.java class
Small fix "ref" -> "rel" in full export header
Merge pull request #33 from jateeter/master

FInal step of <link> references conversions
Merge remote-tracking branch 'upstream/master'