[goconserver] Enhance goconserver phase 2

[chenglch]

• Fix the error from terminal output like:

root@kvmguest1:/usr/bin# roroot@kvmguest1:/usr/bin#

• The input from client terminal can not fit for the tty width
• https://github.com/chenglch/goconserver/issues/8 (high priority)
• https://github.com/chenglch/goconserver/issues/9 (high priority)
• https://github.com/chenglch/goconserver/issues/3 (high priority)
• test logrotate support
• Add timestamp in the log content
• Support console replay from client side
• handle reconnect gracefully at server side ( multiple goroutines may reconnect to an unreachable node previously) Fixed in chenglch/goconserver@43dddb3
• https://github.com/chenglch/goconserver/issues/13 When console is not created, the error message doesn't help user