gen_3D_array_video.py: Replaced all import as statements with imports and used the modules directly.
gen_3D_array_video.py: Broke up long line.
gen_3D_array_video.py: Remove blit argument as this does not working for visualizing on Mac with PyQt4 backend.
gen_3D_array_video.py: Use subplots so as to get axes.
gen_3D_array_video.py: Turn off tick labels.