Plot window show complete path.
Improve surface coloring, temporary display log on surface.
Remove log sfrom surf plot.
Remove single plot, dual plot overview has fixed height.
Add slice plots to surface plot.
Remove unused about page.
Fix about page.
Partially clean up translation and vt utils calls.
Streamline main plugin leaving only one plot option.
Bring code closer to pep8 standard, remove plugin_utils stuff..
Fix surface plot for non complex data.