Update to Proper Modeled 3D Python Logo

Blender: Logo import from official svg with included (TM), fixes to logo
when conversion to mesh.
Shinier Glass Material. Re-Rendered Animation. Photoshoped doc exports,
Added Python powered to psd layer1. Saved as psd. Then Giffed the psd
with GIMP.
Update Demo with Official PSF Logo Gif and delete old my 'Not Quite
Right Homebrew Model without TM' gif.