Jeff: Implemented Dragging and Scaling for Rect Mark; Dragging for Arc Mark
Jeff: Implemented Dragging and Scaling for Rect Mark; Dragging for Arc Mark

jsanch/lyra,kidaa/lyra,uwdata/lyra,rhencke/lyra,uwdata/lyra,kidaa/lyra,jasongrout/lyra,jasongrout/lyra,rhencke/lyra,jasongrout/lyra,jsanch/lyra,jsanch/lyra,rhencke/lyra,kidaa/lyra