3.3.6

• Improve accuracy of winding order determination in d3.geo.projection.
• Fix spherical clipping for complex polygons.
• Fix viewport clipping when a subject polygon completely surrounds the viewport.
• Fix zero-duration transitions to always tick once at t = 1 (and never t = 0).
• Fix d3.svg.axis to not pollute an ordinal scale’s domain when an explicit range is used.
• Minor optimizations.