Change default bindAddress to 127.0.0.1

[wilzbach]

An alternative if you want people to be explicit would be to use a empty bind address, check for it in listenHTTP, still set the old bindAddress, but trigger a "deprecation message" to the log.

Arguments for 127.0.0.1

• it's the sane default. A user should explicitly expose his server to the world
• `listenHTTP(":8080") is a convenient shorthand for which Vibe.d should just listen on localhost

[dejlek]

Why is binding to localhost a better alternative than binding to any available interface?? Imagine your CI/CD pipeline includes generation of a docker image, you run it, and want to test... - You will not be able to use the 127.0.0.1 . However, if the code by default binds to any interface, you should be able to connect to your docker container.

[wilzbach]

Why is binding to localhost a better alternative than binding to any available interface??

Because you don't want to expose your application to the public interface by default.
That should be a conscious choice by the programmer.

However, if the code by default binds to any interface, you should be able to connect to your docker container.

Yep, and that should be a conscious choice as otherwise it's really easy to accidentally expose your application to the world.