SWIG/Python: improve the proxy class template, so that the Right Thing is done with array/hash members on attribute retrieval.
SWIG/Python: improve the proxy class template, so that the Right Thing is done
with array/hash members on attribute retrieval.

* subversion/bindings/swig/include/proxy.swg:
  (_copy_metadata): New function.
  (<proxy>.__getattr__): Update to use _copy_metadata.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion