VIBlend Controls for Silverlight v4.0

New Silverlight release from VIBlend. Highlights of the new features and improvements in the new version are: * Smooth scrolling animation in TreeView, ListBox, ComboBox and CheckedListBox, * DataGrid Pivot table aggregation functions - StDev, StDevP, Var, VarP , * New Controls: Ribbon Bar, vScrollViewer, DataGrid Pivot Design Panel, DataGrid Grouping Panel * New Default Theme for all controls in the package.