change server bind address (#403)

* web/mod.rs - change server bind address

127.0.0.1 is a loopback interface, and only works on the same host
0.0.0.0 will allow connections from other hosts

ideally, this should be a console arg - but it's a quick fix

* implement --address option, revert default bind address to 127.0.0.1

* revert silly autoformatting

* ok, actually using rustfmt now

* More precise --address flag description

* Use SocketAddr where available, take advantage of const-ness

* Display 'localhost' if address is loopback

* Update Changelog

Co-authored-by: Lucien Greathouse <me@lpghatguy.com>

src/web/mod.rs

@@ -4,7 +4,7 @@ pub mod interface;
 mod ui;
 mod util;
 
-use std::sync::Arc;
+use std::{net::SocketAddr, sync::Arc};
 
 use futures::{
     future::{self, FutureResult},
@@ -57,9 +57,7 @@ impl LiveServer {
         LiveServer { serve_session }
     }
 
-    pub fn start(self, port: u16) {
-        let address = ([127, 0, 0, 1], port).into();
-
+    pub fn start(self, address: SocketAddr) {
         let server = Server::bind(&address)
             .serve(move || {
                 let service: FutureResult<_, hyper::Error> =