Updates to extra_layers. Also playing with animation stuff in view.py; inconclusive.
Updates to extra_layers. Also playing with animation stuff in view.py; inconclusive.

gallantlab/pycortex,CVML/pycortex,smerdis/pycortex,smerdis/pycortex,CVML/pycortex,smerdis/pycortex,gallantlab/pycortex,smerdis/pycortex,CVML/pycortex,CVML/pycortex,gallantlab/pycortex,CVML/pycortex,smerdis/pycortex,gallantlab/pycortex,gallantlab/pycortex