0.8.3

New awesome REPL mode for chat sessions. To start a chat session in REPL mode, use the --repl option followed by a unique session name. You can also use "temp" as a session name to start a temporary REPL session. Note that --chat and --repl are using same chat sessions, so you can use --chat to start a chat session and then use --repl to continue the conversation in REPL mode. REPL mode will also show history of your conversation in the beginning. REPL mode can work with --shell and --code options, which makes it very handy for interactive shell commands and code generation.