fix topbar to work on mobile devices

The topbar, by way of JavaScript, now works
on mobile devices such as cell phones and
tablets.

Internal links for entries from 1984 thru 2015
have been adjusted.

Ran `make www` to perform the above.

TODO: Fix some color issues on topbar.

TODO: More testing!

2013/dlowe/README.md

@@ -56,7 +56,7 @@ obfuscated way.
 Also, why doesn't it crash but instead produces a correct output when called
 with one argument or when all arguments are equal?
 
-For extra fun, compile and run [fun.c](fun.c):
+For extra fun, compile and run [fun.c](%%REPO_URL%%/2013/dlowe/fun.c):
 
 ``` <!---c-->
     #include <stdio.h>