First working version of protocol handshake.

Key exchange and authentication is functional.
Protocol definition has been moved to separate crate to speed up build time.
Various cleanups. Take login info from command line, rather than hardcoded.

src/main.rs

@@ -1,8 +1,7 @@
 #![crate_name = "librespot"]
 
-#![feature(plugin,core)]
+#![feature(plugin)]
 
-#![plugin(mod_path)]
 #![plugin(protobuf_macros)]
 #[macro_use] extern crate lazy_static;
 
@@ -11,18 +10,39 @@ extern crate crypto;
 extern crate gmp;
 extern crate num;
 extern crate protobuf;
+extern crate shannon;
 extern crate rand;
+extern crate readall;
+
+extern crate librespot_protocol;
 
 mod connection;
-mod cryptoutil;
-mod protocol;
+mod keys;
 mod session;
 mod util;
 
-use session::Session;
+use std::fs::File;
+use std::io::Read;
+use std::path::Path;
+
+use session::{Session,Config};
 
 fn main() {
-    let mut s = Session::new();
-    s.login();
+    let mut args = std::env::args().skip(1);
+    let mut appkey_file = File::open(Path::new(&args.next().unwrap())).unwrap();
+    let username = args.next().unwrap();
+    let password = args.next().unwrap();
+
+    let mut appkey = Vec::new();
+    appkey_file.read_to_end(&mut appkey).unwrap();
+
+    let config = Config {
+        application_key: appkey,
+        user_agent: "ABC".to_string(),
+        device_id: "ABC".to_string()
+    };
+    let mut s = Session::new(config);
+
+    s.login(username, password);
 }