v1.1

• #12 Add support for key <Delete>/<Home>/<End>
• Only enter raw mode as needed (calling Readline()), program will receive signal(e.g. Ctrl+C) if not interact with readline.
• Bugs fixed for PrefixCompleter
• Press Ctrl+D in empty line will cause io.EOF in error, Press Ctrl+C in anytime will cause ErrInterrupt instead of io.EOF, this will privodes a shell-like user experience.
• Customable Interrupt/EOF prompt in Config
• #17 Change atomic package to use 32bit function to let it runnable on arm 32bit devices
• Provides a new password user experience(readline.ReadPasswordEx()).