Changelog:
==========
Remove warnings during the build of the package using package_data specs in setup.py
Fix decoding with process_namespaces=False and xsi:type in XML instance
Refactor DataElement.get(), restore DataElement.set() (issue #314)
Add map_attribute_names argument to DataElementConverter
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>