Add Animations to Area-, Line-, Circle-, and BarRenderers.

Animations are still OFF by default.
Timings and some visuals still need to be adjusted.
Update built files
Merge branch 'master' into animations

Conflicts:
	plottable.js
Renderers now animate when added (back) into the DOM
Update built files
Factor out animation duration as protected constant

Also use arrow notation for projectors.
Merge branch 'master' into animations
Fix merge.
Merge pull request #426 from palantir/animations

Add Animations to Area-, Line-, Circle-, and BarRenderers.