Fixed scrollbars not being able to scroll the diagram all the way to the edge of the document in browsers that use overlay scrollbars, such as Firefox on Windows.
Fixed a rapid left-click followed by a right-click incorrectly being treated as a double-click, which also prevented a context menu from opening.
Fixed tree collapse animation when collapsing multiple levels at once.
Changed the defaults for the LinkLabelRouter extension to better hold labels onto the routes.
Fixes for internal image cache when multiple Diagrams are using the same Picture.