Merge pull request #391 from APriestman/stix

.../java/src/org/sleuthkit/datamodel/BlackboardArtifact.java

...java/src/org/sleuthkit/datamodel/BlackboardAttribute.java

bindings/java/src/org/sleuthkit/datamodel/Bundle.properties

bindings/java/src/org/sleuthkit/datamodel/OSInfo.java

bindings/java/src/org/sleuthkit/datamodel/OSUtility.java

framework/tsk/framework/services/TskBlackboard.cpp

framework/tsk/framework/services/TskBlackboard.h