- editmesh select mirror (in editmode select menu)

- weight blending (Vertex specials menu), currently blends from surrounding unselected verts (nice for blending edge loops), but will eventually support face mask mode.

source/blender/editors/include/ED_mesh.h

@@ -147,6 +147,7 @@ void		EM_free_data_layer(struct EditMesh *em, struct CustomData *data, int type)
 /* editmesh_mods.c */
 extern unsigned int em_vertoffs, em_solidoffs, em_wireoffs;
 
+void		EM_cache_x_mirror_vert(struct Object *ob, struct EditMesh *em);
 void		mouse_mesh(struct bContext *C, short mval[2], short extend);
 int			EM_check_backbuf(unsigned int index);
 int			EM_mask_init_backbuf_border(struct ViewContext *vc, short mcords[][2], short tot, short xmin, short ymin, short xmax, short ymax);