Hi,

I have updated the XeroJAXBMarshaller to create a new marshaller/unmarshaller on a request basis. Because otherwise it would not be thread safe. And for us (we use one Xero Client per company) It is working in a multi threaded environment. (See XeroJAXBMarshaller.java)

I also added the RateLimit to the XeroApiException. If the rate limit problem occurs, the type (minute/daily) is added to the string, so it is added to the message map. Then you can act accordingly.
(See OAuthRequestResource.java)

And I added the includeArchived parameter in the getTrackingCategories method. (See XeroClient.java)

hope this changes are ok, otherwise please tell me what I should change, we really need this functionallity.

regards Peter