Started implementation of RadarChart (Spider-Web-Chart).
Worked on RadarChart.
Worked on RadarChart.
Values are now drawn correctly in the grouped barchart (issue #67).
Fixed issue concerning grouped BarChart and MarkerView.
Worked on RadarChart. Fixed known issues.
Worked on RadarChart, implemented highlighting.
A text color can now be set for all labels.
Worked on RadarChart.
Worked on new LineChart example.
Added colored LineChart example.
Added feature to over-drag the chart over it's bounds (issue #71).
Added method fitScreen() that resets all dragging and scaling and lets the chart fit exactly on the screen.
Fixed issue concerning offset calculation and legend.
Finished implementation of RadarChart (issue #65).
Merge readme.