v0.4.0

closes #32
closes #33

tests/cpass/peripheral.rs

@@ -0,0 +1,19 @@
+//! Core and device peripherals
+#![feature(extern_crate_item_prelude)] // ???
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {
+        let _: rtfm::Peripherals = core;
+        let _: lm3s6965::Peripherals = device;
+    }
+};