Rotate Thumb -> Update Adorner on Rotation
Extension Server for Only one Selected Item
TopLeftContainerDragHandle for all Framework Elements
In WPF Designer A few extensions should only be used when only One Item is Selected,
because they only work with one Item (ResizeThumb, RotateThumb, RenderTransform, QuickOperationMenu)
Adorner Display fix
(fixes #435)
Snapline for middle of Object (like in VisualStudio)
Make Snapplines also work for Items in other Containers
RotateThumb -> Only when Only one Item is selected
Skew Thumb Extension
Remove unused Code from Rote Thumb
Merge remote-tracking branch 'remotes/sd/master'
Fix UNDO on Resize and Skew Extension
New Selection Extensions Server (PrimarySelectionButOnlyWhenMultipleSelectedExtensionServer) & fix OnlyOneItemSelectedExtensionServer
Canvas extension -> Only when One item is selected
Show a Border around multiple Selected Items and a TopLeftContainerDragHandle (multipleItems)
Snapline -> Null Ref fix
OutlineView -> Fix jump to selected Item
Merge pull request #446 from jogibear9988/master

Many small fixes & Extensions for the WPF Designer