Merge pull request #29 from andre-richter/master

Fix unused extern crates

src/browser/main.rs

 #![deny(warnings)]
 
-extern crate html5ever_atoms;
 extern crate html5ever;
-//extern crate mime_guess;
 extern crate orbclient;
 extern crate orbfont;
 extern crate orbimage;

src/orblogin/main.rs

@@ -4,7 +4,6 @@
 extern crate orbclient;
 extern crate orbimage;
 extern crate orbfont;
-extern crate orbtk;
 extern crate userutils;
 
 use std::{env, str};