Graceful shutdown

[EhudKeywee]

Hi,
Seems like there is no way to stop the bot while running commands.
It will be nice if the SlackRubyBot::App.instance.run will catch" kill signal" will stop listen to the slack and then once all commands finished will get out.

[wasabigeek]

Hi! To clarify, is it something like this:

• User enters command, bot starts executing
• Before bot finishes, User enters a "Kill" command. Bot continues to execute current command
• User enters a new command
• Bot stops and doesn't execute the new command