Fix up Cargo.toml, remove unnecessary user32-sys dependency

Author: vvuk

Cargo.toml

@@ -21,6 +21,5 @@ uuid = {version = "0.3", features = ["v4"]}
 crossbeam = "0.2"
 
 [target.'cfg(target_os = "windows")'.dependencies]
-winapi = "*"
-user32-sys = "*"
-kernel32-sys = "*"
+winapi = "0.2"
+kernel32-sys = "0.2"

src/lib.rs

@@ -25,8 +25,6 @@ extern crate uuid;
 extern crate winapi;
 #[cfg(all(not(feature = "force-inprocess"), target_os = "windows"))]
 extern crate kernel32;
-#[cfg(all(not(feature = "force-inprocess"), target_os = "windows"))]
-extern crate user32;
 
 pub mod ipc;
 pub mod platform;