Fixed a couple of compilation warnings on unused variables
Part of WB-436: For Spec File Dialog: (1) Change sprocket menu text for copying filename to 'Copy Path and Filename to Clipboard'; (2) Add 'Copy Path and Filename to Clipboard' to Spec File Entry; and (3) Make 'Copy Path and Filenme to Clipboard' active for files that are not loaded.
Disabled context (right-click) menu that enabled capturing an image of the dialog to the clipboard as users sometimes unintentionally cause it to pop up.
Part of WB-396 Overlay and Map Settings Palette Histogram Should Be Calculated on the Whole File for Parcellated Datatypes: Added (and implemented) colorbar icon to Overlay ToolBox->Charting->Loading for matrix files.
Fixed drawing of background color under colar palette bar so that the background color is under both the color bar and the numeric values just above the color bar.
Renamed EventMapSettingsEditorDialogRequest to EventMapSettingsEditorDialogRequest and renamed MapSettingsEditorDialog to OverlaySettingsEditorDialog as they handle a number of settings related to overlays the map selected in the overlay.
Added palette color mapping editor for editing a file's color palette and, at this time, is used for editing the palette used for chart matrix visualization.
Added static method for CaretMappableDataFile's to file path name prefix compactor
Additiona to WB-448: Use file name compactor for Overlay selection.
Resolve WB-451: Change 'File Menu->Close Spec File' to 'File Menu->Close All Files' and on Save/Manage Files Dialog, change 'Remove' column name to 'Close'
Update WholeBrain model when there is a file changed.
Update WholeBrain model when there is a file changed, made update method public