removed old code from barcharts

model delegate for bar series. updated examples

barchart mvp model integrating

model prototyping for bar chart

Integrated scatter again. Missing functionality. Fixed compilation issue in declarative part.

Use signals from pieseries, visible hover and exploding slices

Clean up obsolete create metods in series

Add public function for axis hadnling to qchart

minor. compilation fix for test widget

Adds missing ids to theme classes