Update documentation after adding order property

Author: orbingol

nurbs/Curve.py

@@ -19,6 +19,7 @@ class Curve(object):
 
     :class:`.Curve` class implements Python properties using the ``@property`` decorator. The following properties are present in this class:
 
+    * order
     * degree
     * knotvector
     * delta

nurbs/Surface.py

@@ -19,6 +19,8 @@ class Surface(object):
 
     :class:`.Surface` class implements Python properties using the ``@property`` decorator. The following properties are present in this class:
 
+    * order_u
+    * order_v
     * degree_u
     * degree_v
     * knotvector_u