started to add zooming to ValieLineChart
Polished and improved zooming in ValueLineChart
Zoom ValueLineChart:
- implemented fling gesture for scrolling when zoomed in
- added egMaxXZoom and egMaxYZoom attributes
bugfixes and additions
- zoom reset after new data is inserted
- PieChart now displays a grey chart if no data is inserted
- some calculation fixes
- fixed bug when reseting zoom
minor fix
added better custom legend handling
bug fixing
added scroll to end function in BarCharts
Describe how to initially prepare the project.
Merge pull request #35 from johnjohndoe/project-setup

Describe how to initially prepare the project.
fixed minor bug when resetting the zoom and a series is inserted but contains no points
StackedBarChart additions
- implemented separation between bars
- implemented value drawing inside of bar if it fits
standard value line are now dashed