combine 3.0.0-beta.1

Fast parser combinators on arbitrary streams with zero-copy support.
Documentation 
#!/bin/bash -x


cargo build &&
    cargo test --features doc &&
    cargo test --features doc --examples &&
    cargo check --bench json &&
    cargo check --bench http &&
    cargo check --bench mp4 --features mp4 &&
    cargo build --no-default-features &&
    cargo test --no-default-features --examples