Grid example works with new Viewer class
Resurrect viewbox example
Fixed viewbox1 example
Working toward a functional CameraViewer
Added AffineTransform.set_mapping
fixed rect eq test
Trying turntable-style user interaction in camera
Added callback-specific blocking to eventemitter
OrthoCamera working in viewbox1 example
Merged Viewer and Camera classes
PanZoom and turntable/ortho are working. perspective is broken.
Added interactive property
Fixed turntable/ortho wheel behavior
PanZoom responds to wheel
transform corrections.. perspective is almost working
Cleanup and docstrings
flakify
Fix following rebase
Minor edits
Fixed grid example
Fixed image example
Fixed line example