Change route from "app" to "bin"

[wilsonvargas]

When you write "app/console" returns: Could not open input file: app/console.

I changed this to bin/console

[xabbuh]

app/console is still true for older versions of the Symfony Standard Edition (for that there's a hint noting that you have to replace app/console with bin/console on top of the page). See also #468 (comment).