Fix a couple of compilation warnings
Resolve WB-476 - Coloring does not match when viewing a parcel file in both surface and matrix views: When coloring the matrix view of a parcel file, all data from the file is used when calculating statistics (min/max ranges). When coloring brainordinates, only the data from the loaded row/column is used when calculating statistics. This results in a different coloring being assigned to a parcel in the surface view than in the matrix view.  The problem has been corrected by using the "file's statistics" when coloring brainordinate data.