Comment tweaks, build tweaks, bugfixes

I've also disabled the "screen trick". It was ugly as hell.

makefile

@@ -38,10 +38,11 @@ $(OUTDIR):
 clean:
 ifeq ($(OS),Windows_NT)
 	del /s *.o *.a *.exe $(OUTDIR)\*.dll
+	rmdir $(OUTDIR)
 else ifeq ($(shell uname), Linux)
 	find . -type f -name '*.o' -exec rm -f -r -v {} \;
 	find . -type f -name '*.a' -exec rm -f -r -v {} \;
-	rm -f -v $(OUTDIR)
+	rm $(OUTDIR)/* -f
 	find . -empty -type d -delete
 endif