Added "version" as a keyword, instead of reserved word to avoid the clash with the "version" element of the Code system-defined type.
Added "version" as a keyword, instead of reserved word to avoid the clash with the "version" element of the Code system-defined type.

MeasureAuthoringTool/clinical_quality_language,wanghaisheng/clinical_quality_language-Research,MeasureAuthoringTool/clinical_quality_language,DBCG/cql_engine,wanghaisheng/clinical_quality_language-Research,MeasureAuthoringTool/clinical_quality_language,wanghaisheng/clinical_quality_language-Research,DBCG/cql_engine,cqframework/clinical_quality_language,MeasureAuthoringTool/clinical_quality_language,cqframework/clinical_quality_language