ReferenceFrame -> Frame
TerseHandling and FPSTiming API overview. Re-implementing AbstractScene
visual hints API.
Unifying camera and window drawing api
Making geom api more consistent (departing a bit from P5)
new action CAD_ROTATE
moving PointUnderPixel to View
View -> Eye
improving ShowWarnings (needs testing) + completing Eye by adding those
warnings (p5 style)
improving warnings. Discarding p5 style with the eye
enable disable proscene agents refactored
further api refinements
merging api changes from master
adding new action: SCALE