Restructure directories to prep for syntex

Cargo.toml

@@ -1,17 +0,0 @@
-[package]
-name = "serde"
-version = "0.3.3"
-authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
-license = "MIT/Apache-2.0"
-description = "A generic serialization/deserialization framework"
-repository = "https://github.com/serde-rs/serde"
-documentation = "http://serde-rs.github.io/serde/serde"
-readme = "README.md"
-keywords = ["serialization"]
-
-[dependencies]
-num = "*"
-
-[dev-dependencies]
-rustc-serialize = "*"
-serde_macros = { version = "*", path = "serde_macros" }