Blender Git Loki

for CDDM's dmcalcNormals now call CDDM_calc_normals(), not CDDM_calc_normals_mapping(), this means calculating normals will calculate MPoly and MVert normals but not tesselate the mesh (which is overkill for normal calculation anyway).

use CDDM_calc_normals over CDDM_calc_normals_mapping for editmode and ensure the final dm has tessfaces.