OAItoDatahub does not work correctly

[netsensei]

The example OAI to Datahub tries to fetch a LIDO record from the YBCA OAI endpoint and pushes it to the Datahub API. Since the OAI provides LIDO records, there's no need for processing or transforming. The XML structure should be passed on as is.

However, Catmandu will grok the XML and transform it internally into JSON before changing it again into XML. These (redundant) operations break the immutability of the XML structure in this use case. It's not possible to predict if the conversion of JSON > XML will generate the same XML structure which was the original input.

Remove or deprecate the example until the Datahub::Factory supports this use case.