Aligned ObservabledType with CybOX v2.0.1 by adding cybox_update_version attribute support
Aligned LinkObject with CybOX v2.0.1 by changing the URL_Label to extend StringObjectPropertyType
removed outdated docstrings from binding classes
Updated property list handling code and unit tests
Updated schemalocations in namespace parser code
Fix failing test regarding new delimiter.
Fixed default parameter values for ObservablesType in bindings
Fixed enum handling in PatternFidelityType
Changed version attrbute ordering on output for Observables
Updated demo script to output xml using to_xml()
Added _update_version attribute to Observables
Added update_version support to Observables.to_dict()
bumped version to 2.0.1.0
Merge pull request #62 from CybOXProject/v2.0.1.0

Merging v2.0.1.0 branch with master