http_reader 0.1.0

A HttpReader with LruCache use for ZipArchive and etc.
Documentation
http_reader-0.1.0 has been yanked. 
fn run() -> Result<()> {
    let reader = HttpReader::new("http://192.168.0.102:9212/upgrade.zip");
    let mut archive = ZipArchive::new(reader).unwrap();
    let mut file = archive.by_name("rootfs.emmc").unwrap();
    let mut fd = File::create("./rootfs.emmc").unwrap();
    io::copy(file, fd).unwrap();
    Ok(())
    }