* Rescaling can cause points to become disconnected
This was the result of NumericPlotModelMixin::doDilation not passing the plot to the GraphAnimator. The latter relies on there being a plot so that it can set isAnimating to false when the animation is complete. If isAnimating is not set to false, the plot assumes that an animation is ongoing and does not use axis coordinates for redisplay.

numeric_plot_model_mixin.js [ In doDilation, pass the plot to the GraphAnimator. ]
* Plotted mean, median, etc progressively less visible when the number of cells is large
A plot’s paper is slightly larger than it actual plot area. (Not sure why this is.) In any event, when computing cell height in PlotAverageAdornment::updateSymbols, we were using paper height to compute cell height. As a result, the cell height was slightly too large. We use pixelMax and pixelMin of the appropriate axis instead and we get the right cell height.

plotted_average_adornment.js [ Change method of computing cell height in updateSymbols so that we get the correct drawing coordinates for vertical lines. ]
Added Sampler component in developer portion of Game menu.
Merge branch 'origin/master'