0.3.0

• add export view to an image, optionally with or without controls shown.

0.2.0

• add ability to specify stroke width and color for each connection.
• depth-first drawing of connections and axes to enchance 3D effect.
• add axis stroke width setter method.
• scale orthographic projection view down slightly to allow room for index text on outermost points.

0.1.0

• initial release.