Fixed a bug that did not set the name of a volume file correctly after reading the volume file.  Likely introduced as part of volume editing updates.

make VolumeBase::setModified virtual again so that it calls VolumeFile's implementation to let it know the splines are invalid

Add a preliminary version of voxel editing for oblique viewing.  Fixed issue that did not select correct volume for editing when the top layer was disabled and contained a volume file.

also reduce manual memory allocation

For the palette mapping editor, problems were noticed when the threshold mode was set to unlimited.  The range of values was set using the range of floating point numbers which caused problems with NaN sometimes being displayed and the sliders were not functioning.  Now, when the threshold is 'unlimited', the maximum absolute value for all date within the file is found.  For 'unlimited' the range is now (-2 * file-abs-max-value, 2 * file-abs-max-value)

Updates for WB-393 Volume ROI Drawing: (1) Can now drag mouse to turn voxels on and off; (2) If a new volume is created, it becomes the top-most overlay; (3) New Volume Dialog can get volume parameters (dimensions, origin, spacing) from a CIFTI file.

In an attempt to resolve WB-474, Capture Image loses overlay in resulting capture: Added a call to repaint() immediately before calling captureImage() to ensure the frame buffer is updated.

More updates for volume editing including improved error messages and clean up of comments and code.

When assigning label coloring, if the label is not in the files 'group/name' hierarchy, go ahead and assign the label's color.

Fixed crash in overlay system when a chart is displayed in a tab.  The bug occurred during a recent update to yoke to the file selection status.

Fixed bug: If the volume underlay (anatomical volume) is turned off in the overlay toolbox, the selected slices do not change and then clicking the up or down arrow for a slice coord or index causes slices to jump to a much different location.

Fixed bug in culled orthogonal volume slice drawing that caused the selection to be off by a slice which sometimes caused the slice in the viewed axis to change.  Also added selection for volume voxel editing.

Starting on WB-393 Volume ROI Drawing.  Toolbar has been created and dialog for creating a volume file is functioning.

Resolve WB-473 Clicking Dense Connectome in Volume Montage is Innaccurate: When drawing a volume montage, the code was incorrectly using the coordinate of the selected slice (in toolbar) when drawing each of the montage slices.

Adjusted copyrights listing to be cover Vera*.ttf and more details on some files

Resolve WB-470: Add On/Off Status of Layer to Layer Yoking Functionality: Yoking of enabled status now only works for the same files and only if the file contains brainordinate data for surface AND volume.