BeanXmlConverter

[Ian Boston <ie...@tfd.co.uk>]

BeanXmlConverter currently has a blocker https://issues.apache.org/ 
jira/browse/SHINDIG-562 to do with serializing the beans and  
conforming to the XSD.

Cassie had a look at fixing this, I have also had a look at it and I  
think, since there isn't much code in BeanXmlConverter, it may be  
quicker to switch to XStream for serialization than try and work out  
how to make it work as it stands.

The reason I say this is that I put in an full XSD validator test and  
tried for a while to make the exisiting BeanXmlConverter work, and  
gave up but I am making more progress with XStream.... any objections ?
It should only effect this bean and not be visible outside this bean,  
and will like the other bean converters be pluggable.

It uses XStream (obviously) and xpp3, both have MIT/BSD licenses AFAICT.

Ian
(oh and the parser is a pull parser, so faster and lighter.)