Mesh collar enhancements

The Mesh > Mesh Collar tool is now easier to use due to the following modifications:

The Ribbon fit type has been eliminated.
The Degree options has been eliminated. All collar surfaces are now degree 5 in the U direction, which produces consistently better results than degree 3.
There is a new option Show Surface Deviation that displays min and max locators at the points of smallest and largest deviation between the collar and the mesh.
There is a new option Show Deviation Map that displays a color map showing the deviation between the collar and the mesh. The Deviation Map Settings work the same way as in other tools such as Mesh Smooth, Mesh Reduce and Evaluate > Deviation map
You can remove a point by holding and clicking it. A periodic collar needs at least one point, and non-periodic collars need at least two.
Collar surfaces now have history. You can use Object Edit > Query or the History View window and select the collar to re-enter the tool and modify the option values and input points. However, changing the geometry of the mesh boundary or curve-on-mesh used to build the collar will destroy the collar history.