Removed renderers, merged with experimental.
Minor improvements and changes to the arcitecture.
refactor line chart for more extensibility
Refactor Chart from View to ViewGroup
Make CPoint accessible to subclass
Make Chart pass layout on to children
Make BarChart more extendable
Make member bar objects protected
set WillNotDraw to false - needed since now a ViewGroup
Add extensibility elements to BarCharts
Add HorizontalBarChart and ColumnToBarTransformer
Fix extend