readme example to work with current code and rust >= 0.1.12
readme example to work with current code and rust >= 0.1.12

- some more ‘mut’
- “true” as return value in handler functions
- printing of header and value with from_utf8_lossy

nbaksalyar/rust-streaming-http-parser,nbaksalyar/rust-streaming-http-parser,3Hren/rust-streaming-http-parser,3Hren/rust-streaming-http-parser