Switch visualize.js to using express

This seems to make it easier to write a maintainable web application. And it
helps with things like adding authentication, etc.

One immediate benefit is delivery of static files - we move all of them into a
subdirectory (otherfiles) and then use the express.static function to have them
all delivered to the client.

Other than that this is a 1:1 conversion without added functionality.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Move all the visualize related files into a subdirectory

This way they don't clutter the examples folder.

I also changed the favicon. The old one looked really lame - I like this one
much better.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Only turn on the logger if in verbose mode

The express logger is nice, but way too verbose for normal use.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Make the visualizer work from the main directory

Previously you had to be in the examples directory for it to find its html
files.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Update the README.md

Reflect the move to the visualize subdirectory

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Merge pull request #20 from dirkhh/express

Switch to express, move visualize files into subdirectory