Split AreaInteraction into dragInteraction, dragBoxInteraction, xDragBoxInteraction, xyDragBoxInteraction
Add a selection quicktest, fix a mistake in XDragBoxInteraction
Fix typo in reference.ts
Get width/height from component, not parseFloat
Clearer console logging, better fn names
Remove another parseFloat
Merge pull request #362 from palantir/refactor-drag-interaction

Refactor drag interaction
Give LineRenderer default color, rename tutorial to "basicChart"

Also sort xyData and move it under the tutorial so the entire tutorial can be
grabbed as a unit.
Merge pull request #363 from palantir/basic-chart-tutorial

Give LineRenderer default color, rename tutorial to "basicChart"
Update plottable.js, plottable.d.ts, and other build artefacts
Merge branch 'master' into gh-pages