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!

2015/howe/README.md

@@ -63,8 +63,8 @@ Or should we teach our youth to understand the intricacies of this code?
 Ying Tong Iddle I Po!  We suggest you read the source for yourself, which
 might be easier than the academic papers it was inspired by.
 
-NOTE: Unlike the original entry source, [prog.alt.c](prog.alt.c),
-[prog.c](prog.c) uses a
+NOTE: Unlike the original entry source, [prog.alt.c](%%REPO_URL%%/2015/howe/prog.alt.c),
+[prog.c](%%REPO_URL%%/2015/howe/prog.c) uses a
 64 bit FNV hash and fixes a function call warning.
 
 
@@ -95,7 +95,7 @@ The `-d` option simply writes the edit distance between `file1` and `file2`.
 The FNV1a hash is a little slow compared to the trivial hash [GNU
 diff](https://www.gnu.org/software/diffutils/) uses. I downloaded a plain text
 copy of "War And Peace" from [Project Gutenberg](https://www.gutenberg.org),
-used [makeholes.c](makeholes.c) to make 1000 random changes, then profiled and
+used [makeholes.c](%%REPO_URL%%/2015/howe/makeholes.c) to make 1000 random changes, then profiled and
 timed the program verses GNU `diff(1)`.  The bottleneck appears to be in the
 file I/O and line hashing with an average +0.05s slower.  Using a huge file like
 "War And Peace" for testing offsets the `diff(1)` optimised file I/O.
@@ -107,12 +107,12 @@ a region of edits are highly unlikely.
 
 ### Support Files
 
-* [prog-test.sh](prog-test.sh)
+* [prog-test.sh](%%REPO_URL%%/2015/howe/prog-test.sh)
     Basic test program verifies known test edit distances and `patch(1)` support.
 
-* [avgtime.sh](avgtime.sh)
+* [avgtime.sh](%%REPO_URL%%/2015/howe/avgtime.sh)
 
-* [makeholes.c](makeholes.c)
+* [makeholes.c](%%REPO_URL%%/2015/howe/makeholes.c)
     Random edits (holes) made to a file in-place.
 
 ### References