Summary of changes:

* Polygon mode > Geometry > Copy Polygon Patch.
* A new basic streamline tool, Paste Polygon Patch. Paste copied polygon patch on each individual selected polygon, or at snapping point or at empty space.
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* A new basic streamline tool, EdgeLoop_Utility. It is a edge loop utility tool: pass-proportions/pass-Length/parallel/perpendicular/even-spacing/straighten. Click at either an end or a middle vertex of a selected edge loop to activate the function.
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* Object mode > Create Vertex Soft Selection From Splines. Create vertex soft selection on selected mesh objects from selected splines. Before executing this command, adjust soft selection falloff to a proper value. Select the related mesh and spline objects then execute this command in object mode.
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* Some improvement on Cut tool and Spline-Rig tool.
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* Some bug fixings.