Merge branch 'release-0.16.0'

...operations-guide/running-metabase-on-elastic-beanstalk.md

docs/users-guide/05-sharing-answers.md

docs/users-guide/10-metabot.md

docs/users-guide/images/FirstDashboard.png

docs/users-guide/images/dashboards/DashboardAutorefresh.png

docs/users-guide/images/dashboards/DashboardCreate.png

docs/users-guide/images/dashboards/DashboardEdit.png

docs/users-guide/images/dashboards/DashboardNightMode.png

docs/users-guide/images/dashboards/Editmode.png

docs/users-guide/images/dashboards/FirstDashboard.png

docs/users-guide/images/metabot/MetabotHelp.png

docs/users-guide/images/metabot/MetabotList.png

docs/users-guide/images/metabot/MetabotShow.png

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docs/users-guide/start.md

frontend/src/admin/settings/components/SettingsSlackForm.jsx

frontend/src/card/card.controllers.js

frontend/src/card/card.module.js

frontend/src/components/AbsoluteContainer.jsx

frontend/src/components/DeleteModalWithConfirm.jsx