
Version 1.1:
    - Refactored code into OO form for dot and line code
    - Refactored code into OO form for pizza plot
    - Pizza plot renamed to Pie plot
    - Added support for Bar Plots
    - Refactored code into OO form for gantt chart
    - Allow use of other types of cairo surfaces
    - Added rounded corners and pseudo 3D option to Bar Plots
    - Added support for Donut Plots
    - Added support for Function Plots
    - Added discrete series option to Function Plots

Version 1.2
    - Added support for Scatter Plots
    - Added support for error bars on Scatter Plots
    - Added support for Horizontal and Vertical Bar Plots


