Use apps_shutdown() in all applications, in case someone decides not

to go the monolith way (does anyone do that these days?).

NOTE: a few applications are missing in this commit.  I've a few more
changes in them that I haven't tested yet.

apps/version.c

@@ -131,5 +131,6 @@ int MAIN(int argc, char **argv)
 	if (cflags)  printf("%s\n",SSLeay_version(SSLEAY_CFLAGS));
 	if (dir)  printf("%s\n",SSLeay_version(SSLEAY_DIR));
 end:
+	apps_shutdown();
 	EXIT(ret);
 	}