- Hhighlight active nurb in edit mode

- Replaced hardcoded nurbcol array with theme colors
- Send notification in duplicate curve operator (this operator could
  reset/change active nurb)
- Edge seam color added to the user preferences dialog

source/blender/editors/include/UI_resources.h

@@ -164,6 +164,22 @@ enum {
 	TH_FACE_DOT,
 	TH_FACEDOT_SIZE,
 	TH_CFRAME,
+	TH_NURB_ULINE,
+	TH_NURB_VLINE,
+	TH_NURB_SEL_ULINE,
+	TH_NURB_SEL_VLINE,
+
+	/* this eight colors should be in one block */
+	TH_HANDLE_FREE,
+	TH_HANDLE_AUTO,
+	TH_HANDLE_VECT,
+	TH_HANDLE_ALIGN,
+	TH_HANDLE_SEL_FREE,
+	TH_HANDLE_SEL_AUTO,
+	TH_HANDLE_SEL_VECT,
+	TH_HANDLE_SEL_ALIGN,
+
+	TH_ACTIVE_SPLINE,
 
 	TH_SYNTAX_B,
 	TH_SYNTAX_V,