• #200 Refactored ns_dict behavior in to_xml() to allow custom namespace mappings
• #254 Added information_source to MarkingSpecification class.
• #188 Added nationalities to CIQ Identity extension.
• #246 Added coa_requested to Incident class.
• #248 Set include_schemalocs to False by default in to_xml()
• #249 Removed "Work In Progress" label from RTD documentation.