geomdl v5.0b4

• Added abstract.Geometry and abstract.SplineGeometry classes
• Improved multi module reusability
• Added animate option to visualization component
• Minor bug fixes and stability improvements
• Documentation updates

PyPI: https://pypi.org/project/geomdl/5.0b4/
Anaconda Cloud: https://anaconda.org/orbingol/geomdl