Merge branch 'inline-core-io' into 'master'

.gitmodules

Cargo.lock

Cargo.toml

core_io

src/c_vec.rs

src/header/stdio/lookaheadreader.rs

src/header/stdio/mod.rs

src/io.rs

src/io/buffered.rs

src/io/cursor.rs

src/io/error.rs

src/io/impls.rs

src/io/mod.rs

src/io/prelude.rs

src/lib.rs

src/platform/linux/mod.rs

src/platform/redox/exec.rs