*) Makefile doesn't generate warning 'overriding target' any more
+) Makefile distclean target.
   make clean - removes object files, dependency files, binaries
   make distclean - removes BUILD_DIR if set or OBJ_DIR, BIN_DIR,
   DEPS_DIR and ctags file
*) Emulator works and draws the alphabet. To draw one character back press 'h' or 'k', to draw one character forward press any other key. Press Esc to quit