Add jsdoc to setVisibility.
Make it easier to set breakpoints while testing CanvasAssertions.numLinesDrawn.
Add method to auto tests' proxy to clear the call list for better testing.
Make connectSeparatedPoints a per-series option. Add automated test and visual test.
Merge branch 'master' of https://github.com/danvk/dygraphs into connect-separated-points
Nit comment resolution for pull request 271 (making connectSeparatedPoints per-series aware.)
Add support for HiDPI displays
Fix flaky testCustomBarsWithNegativeValuesInLogScale. DygraphLayout._calcYNormal(axis, NaN, logscale) initially returns NaN, but after it gets jitted it starts returning Infinity. Some of the downstream code doesn't handle this eventuality.
add comment explaining isFinite check
Code comments and indentation fixes.
Merge pull request #271 from danvk/connect-separated-points

Make connectSeparatedPoints a per-series option.
add get(Type)Option methods
port some option uses
move lots of attr_ calls over to typed getOption
copy datahandler changes over from full-closure branch
move parseFloat_ method around
cleanup _calcYNormal
jsdoc
@protected
todo is done