Changed: Refactored the test suites, facilitating their inheritance by new serializers
Merge branch 'master' into krischer-prov-xml
Refactored the XML round-trip test class to include all currently available round-trip tests
Added: Printing out the serialized content in when a round-trip test fails
Merge pull request #2 from trungdong/prov-xml

A few new tests for XML serialization