Switched sandtable background color to a more pleasing blue

refs #2252
Update threeObject matrixWorld before using it in nodeLookAt

Was causing the sandtable camera position not to update
refs #2252
Update sourceURLs

refs #2252
Disable view-side navigation in sandtable so navscene can do it

Leaving this app using navscene until the view-side navigation has an middle-mouse button orbit
refs #2252