fix TypeError in Bar chart
Update built files
Merge remote-tracking branch 'origin/master' into feature/DeselectAllTypeError

Conflicts:
	plottable.d.ts
	plottable.min.js
	plottable.zip
	test/rendererTests.ts
	test/tests.js
add same _isSetup check to selectBars
Update built files
initialize _bars in _setup()
Merge remote-tracking branch 'origin/master' into feature/DeselectAllTypeError
Update built files
Merge pull request #559 from njwhite/feature/DeselectAllTypeError

Fix TypeError when calling deselectAll on bar chart before it's rendered for first time