added some gitignores for copied files which I now deleted again.
Added further properties to the entities of the model and also created a
new entity "Currency"
New Entity "Currency"
Got the XML Marshalling working based on Jaxb2 and tested it with user
and role. New JaxbList object was neccessary for the list of users,
giving them a root element "items". The spring-general.xml has now the
config for content negotiation manager using json and xml message
converter.