* Upgrade mattermost-redux
* Check if url start with http before pinging
* Remove required status prop in settings sidebar
* Prevent the app to get into a bad state and if that happens try and recover
* update eslint's `comma-dangle` rule to `always-multiline`
* add check and fix scripts to package.json
* Invoke `yarn fix` to adopt the updated eslint rules. No other changes are included.
