* new metarig type for the durian dragon leg (original rig by Cessen)

* option to roll the delta of the arm rig.
* fix to copy metarig type
* renamed EditBone.align() --> EditBone.align_roll()
* Added EditBone.align_orientation(other)
* Added bone.vector: same as (bone.tail - bone.head)

release/scripts/ui/properties_object_constraint.py

@@ -735,6 +735,7 @@ class OBJECT_PT_constraints(ConstraintButtonsPanel):
         for con in ob.constraints:
             self.draw_constraint(context, con)
 
+
 class BONE_PT_constraints(ConstraintButtonsPanel):
     bl_label = "Bone Constraints"
     bl_context = "bone_constraint"