More code reorganization and cleanups.

lib/obj/src/lib.rs

@@ -1,5 +1,18 @@
+//! Object-file writing library using the wasmtime runtime.
+
+#![deny(missing_docs, trivial_numeric_casts, unused_extern_crates, unstable_features)]
+#![warn(unused_import_braces)]
+#![cfg_attr(feature = "clippy", plugin(clippy(conf_file = "../../clippy.toml")))]
+#![cfg_attr(feature = "cargo-clippy", allow(new_without_default, new_without_default_derive))]
+#![cfg_attr(
+    feature = "cargo-clippy",
+    warn(
+        float_arithmetic, mut_mut, nonminimal_bool, option_map_unwrap_or, option_map_unwrap_or_else,
+        print_stdout, unicode_not_nfc, use_self
+    )
+)]
+
 extern crate cranelift_codegen;
-extern crate cranelift_wasm;
 extern crate faerie;
 extern crate wasmtime_runtime;