Fixed issue https://github.com/shannah/CN1aChartEngine/issues/1 with zero width or height in drawing a path.
Added setAutocalculateCenter() and isAutocalculateCenter() to the round chart class so that pie charts will recalculate the center to be the center of the view each time it is rendered.  This issue was reported in the forum
https://groups.google.com/d/msg/codenameone-discussions/IZTPAc_9ihE/naDd5jQP-gYJ
Updated to ca.weblite.pisces