ChangeLog

#38 add SetChildren for prefix completer interface
#42 improve multiple lines compatibility
#43 remove sub-package(runes) for gopkg compatiblity
#46 Auto complete with space prefixed line
#48 support suspend process (ctrl+Z)
#49 fix bug that check equals with previous command
#53 Fix bug which causes integer divide by zero panicking when input buffer is empty

Add a demo for checking password strength example/readline-pass-strength, , written by @sahib
#23, support stdin remapping
#27, add a UniqueEditLine to Config, which will erase the editing line after user submited it, usually use in IM.
Add a demo for multiline example/readline-multiline which can submit one SQL by multiple lines.
Supports performs even stdin/stdout is not a tty.
Add a new simple apis for single instance, check by here. It need to save history manually if using this api.
#28, fixes the history is not working as expected.
#33, vim mode now support c, d, x (delete character), r (replace character)

#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()).

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