Update pythreejs.js

Added cylinder geometry
Update pythreejs.py

Added cylinder geometry
Update pythreejs.py

Bugfix
Update pythreejs.js

Bug fix
Update pythreejs.py

Bug fix to cylinder geometry
Update pythreejs.js

Added cube geometry
Update pythreejs.py

Added cube geometry
Update pythreejs.py

Bug fix
Added circle geometry
Bug fix to cube geometry
Added circle geometry
Added icosahedron geometry
Added icosahedron geometry
Fix to icosahedron geometry
Added octahedron geometry
Added octahedron geometry
Added plane geometry
Added plane geometry
Added tetrahedron geometry
Added tetrahedron geometry