import: removing dummy index does not properly delete the vertex from the mesh (yielding errors in the vertex key data), so reverted back to shift checking algorithm to fix face index order
import: removing dummy index does not properly delete the vertex from the mesh (yielding errors in the vertex key data), so reverted back to shift checking algorithm to fix face index order

amorilia/blender_nif_plugin,nightstrike/blender_nif_plugin,nightstrike/blender_nif_plugin,amorilia/blender_nif_plugin