Merge pull request #394 from raman-bt/develop

...kit/autopsy/corecomponents/DataContentViewerArtifact.java

.../sleuthkit/autopsy/datamodel/AbstractContentChildren.java

...c/org/sleuthkit/autopsy/datamodel/AutopsyItemVisitor.java

...g/sleuthkit/autopsy/datamodel/BlackboardArtifactNode.java

...euthkit/autopsy/datamodel/DisplayableItemNodeVisitor.java

...sleuthkit/autopsy/datamodel/ExtractedContentChildren.java

.../src/org/sleuthkit/autopsy/datamodel/InterestingHits.java

Core/src/org/sleuthkit/autopsy/datamodel/ResultsNode.java

.../org/sleuthkit/autopsy/datamodel/RootContentChildren.java

...sleuthkit/autopsy/directorytree/DataResultFilterNode.java

...hkit/autopsy/directorytree/DirectoryTreeTopComponent.java

Core/src/org/sleuthkit/autopsy/images/interesting_item.png

...hkit/autopsy/keywordsearch/KeywordSearchIngestModule.java