package: Add coffeekup 0.3.1

Signed-off-by: Aki Saarinen <aki@akisaarinen.fi>
package: Add socket.io

Signed-off-by: Aki Saarinen <aki@akisaarinen.fi>
Add jquery

Signed-off-by: Aki Saarinen <aki@akisaarinen.fi>
client: Visualize using socket.io

Bind a server to http://localhost:8081/ where speed and direction is visualized
in the browser.

Signed-off-by: Aki Saarinen <aki@akisaarinen.fi>