- Adds url redirect from old syscall docs url to new url
- make server now runs the Go server and implements redirects.
- make devserver runs the hugo dev server.
In order to ensure that the system call descriptions and other
documentation that will be sourced from the main repository remains up
to date, add a hook that allows the site to submit a rebuild to Google
Cloud Builder. This can be triggered manually by an admin, or will be
triggered every 24 hours by a new cron configuration.