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