Styles moved before DataTemplates. AddonsContextMenu and Separator styled.
MenuItem styled.
Hidden StandardPanel shouldn't be arranged
In a middle of dragging down bug fix
Dragging class down selects class on next row
Ellipse icon added
Reverted changes connected with dragging class fix
ClassDetailsVisibility set to StandardPanel UserControl
Hover for nested classes added.
Merge pull request #182 from vmoyseenko/DUI-StandardPanelResizingFix

StandardPanel bugs fixing
Merge pull request #185 from vmoyseenko/DUI-EllipseIcon

Add Ellipse icon
Merge pull request #187 from vmoyseenko/DUI-PopupMenuForAddons

DUI: popup menu for addons
Merge pull request #190 from vmoyseenko/DUI-HoverForNamespace

DUI: hover highlighting for nested classes.