0.5.0

• A: add --code option
• A: scanned the content of runner to guess the root of local server automaticlly
• A: support request of absolute path relative to root
• A: add more detailed doc on --root option
• U: when --adapter=no, totoro won't detect and insert adapter for runner
• U: change --server-host and --server-port options to --host and --port
• U: set 'server.totorojs.org' as the default value of --host option