Remove extra font-size styling in some elements
removed demo.html from repo
Added ability to specify a class name on individual bars/columns by passing a string or a function in the column/bar options
Fixed memory/node lean on tooltip trackers for area charts
bind the correct key for column rects to prevent columns switching places for the same datum
Added option to pass in a style or class function/string to be applied to each rect/slice of columns, bars and pies.
Preserve extra information in datum when passing tooltip data
Added ability to render stacked line charts
Release 0.9.91