a simple test page for discreteBarChart
added canvas to the discreteBarChart example
refactoring -> width/height moved to canvas
refactoring -> margins
refactoring -> setRoot
refactoring -> noData
advanced tests for discreteBarChart
refactoring -> wrapChart
refactoring
refactoring -> available height/width
refactoring
Merge pull request #1 from kashesandr/discreteBar/canvas

Discrete bar/canvas