initial refactor of DataResult top component into an inner jpanel and outter tc
Refactored DataContentTopComponent by removing the 'tabbed pane' and
putting that logic into a separate JPanel (DataContentPanel) so that it can
be reused by other TopComponents.
Replaced last remaining call to DataContent.getTopComponent() in
DataContentDynamicMenu with DataContentTopComponent.findInstance(). Removed
DataContenet.getTopComponent() method and removed all implementations since
this method is no longer needed.
integrate result panel into timeline
result panel fixes
Merge branch 'timeline' of https://github.com/tmciver-basis/autopsy into timeline
fix spacing, add public constructor for palette
remove unused var, make list final
fix initialization order and cleanup