count num material types and check with assembler type

js/cam/cam.js

js/lattice/Lattice.js

js/menus/AnimationMenuView.js

js/menus/AssemblerMenuView.js

js/menus/templates/AssemblerMenuView.html

js/menus/templates/CamMenuView.html

js/models/AppState.js

js/plists/PList.js