ENH: Quieter testing
FIX: Check for file
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
ENH: Quieter