More Slackbot updates

In addition to skills, we’ve added several new features to Slackbot:

• Scheduled tasks
  Ask Slackbot to perform certain tasks (like creating a meeting agenda canvas) on a recurring basis.
• Slack actions
  With your approval, Slackbot can send messages on your behalf, update your sidebar, set your status, and take a variety of actions on channels, ex. adding people, archiving, and more.
• Calendar and email actions
  Connect your Gmail, Google Calendar, or Microsoft Outlook account to Slack so Slackbot can send emails and create events on your behalf. Currently available to customers with Slackbot and enterprise search.