New: Draw strands extends existing strands from incorrect coordinates
New: Added strand group blending to Surface Comb operator
Fixed: Frozen guides are still selectable
Fixed: Pre/post render callbacks should not cause an error when Ornatrix is not installed
Fixed: // Error: toolPropertyWindow1.mel line 45: Object '' not found. //
Fixed: "Delete Selected Strands" command will delete all guides
Fixed: SubClumping doesn't work in all cases
Numerous internal changes, migrating to a new parameters storage system