2.0.0
changed the interface for pick (oops)
2.0.1
update example in README
2.0.2
added support for rectangular clipping bounds
changed scale calculations for point sizes
update to handle new point picking semantics
change clipBounds to data coordinates
5.0.0
fix picking bug
fixed flickering for points on edge of clip bounds
5.0.1
added outline support
5.1.0
alpha channel support
5.2.0
added font and angle options
added notes on text drawing options
5.3.0