Vendor dependencies

Let's see how I like this workflow.

vendor/flate2/examples/gzdecoder-write.rs

@@ -0,0 +1,26 @@
+extern crate flate2;
+
+use flate2::write::{GzDecoder, GzEncoder};
+use flate2::Compression;
+use std::io;
+use std::io::prelude::*;
+
+// Compress a sample string and print it after transformation.
+fn main() {
+    let mut e = GzEncoder::new(Vec::new(), Compression::default());
+    e.write_all(b"Hello World").unwrap();
+    let bytes = e.finish().unwrap();
+    println!("{}", decode_writer(bytes).unwrap());
+}
+
+// Uncompresses a Gz Encoded vector of bytes and returns a string or error
+// Here &[u8] implements Read
+fn decode_writer(bytes: Vec<u8>) -> io::Result<String> {
+    let mut writer = Vec::new();
+    let mut decoder = GzDecoder::new(writer);
+    decoder.write_all(&bytes[..])?;
+    decoder.try_finish()?;
+    writer = decoder.finish()?;
+    let return_string = String::from_utf8(writer).expect("String parsing error");
+    Ok(return_string)
+}