Added number conversion for possible string data values, fixes #72
Added number conversion for possible string data values, fixes #72

cr3ative/chartist-js,gionkunz/chartist-js,hansmaad/chartist-js,chartist-js/chartist,cr3ative/chartist-js,gionkunz/chartist-js,chartist-js/chartist,hansmaad/chartist-js,chartist-js/chartist