Expose Codec via an unstable flag (#49)

Exposes `Codec` using an unstable flag. This is useful for testing.

util/h2-codec/Cargo.toml

@@ -1,18 +0,0 @@
-[package]
-name = "h2-codec"
-version = "0.1.0"
-authors = ["Carl Lerche <me@carllerche.com>"]
-
-[dependencies]
-http = { git = "https://github.com/carllerche/http" }
-log = "0.3.8"
-fnv = "1.0.5"
-bytes = "0.4"
-string = { git = "https://github.com/carllerche/string" }
-byteorder = "1.0"
-futures = "0.1"
-tokio-io = "0.1.3"
-
-# tokio-timer = "0.1"
-# http = { git = "https://github.com/carllerche/http", branch = "lower-case-header-name-parsing" }
-# slab = "0.4.0"

util/h2-codec/src/lib.rs

@@ -1,22 +0,0 @@
-extern crate http;
-extern crate fnv;
-extern crate bytes;
-extern crate string;
-extern crate byteorder;
-
-extern crate futures;
-
-#[macro_use]
-extern crate tokio_io;
-
-#[macro_use]
-extern crate log;
-
-#[path = "../../../src/hpack/mod.rs"]
-mod hpack;
-
-#[path = "../../../src/frame/mod.rs"]
-mod frame;
-
-#[path = "../../../src/codec/mod.rs"]
-mod codec;