Replace Axes dataArea property w/ dataRect, add dataRect property to LineGraph
Merge remote-tracking branch 'refs/remotes/upstream/master' into widget-refactor
cosmetic
Very preliminary image widget work.
Merge remote-tracking branch 'refs/remotes/upstream/master' into widget-refactor
Merge remote-tracking branch 'refs/remotes/upstream/master' into widget-refactor

Conflicts resolved:
	js/widget-linegraph.js
fix merge conflict correctly this time
Added a redraw method to linegraph, and fixed the test so redraw works.
Merge remote-tracking branch 'refs/remotes/upstream/master' into widget-refactor
refactored the linegraph drawData_ method out of draw and redraw
Merge pull request #10 from mlippert/widget-refactor

line graph redraw
fixed merge conflicts - but this page still doesn't update, only enters and exits.  Same problem I was having.  If you change L or A, the dots recalculate to cover a different rectangle, but those dot values don't update, they just sit there until you change the number of dots, at which point they finally get drawn in the right place.
bungling the merge
fixed rounding on the resistance, and finally got all the values back after merge.
fix that existing data points were not being updated during redraw
Merge remote-tracking branch 'refs/remotes/upstream/master' into widget-refactor
Merge pull request #11 from mlippert/widget-refactor

fixed not updating existing points in line graph