* Updating client dependancies. Switching to using yarn.
* Updating React
* Moving pure components to using function syntax (performance gains with newer react version)
* Updating client dependancies.
* Ignore .yarninstall
* Enabling pre-lockfile because it's the entire point of using yarn.
* Removing old webpack config
* Moving to new prop-types
* Fixing ESLint Errors
* Updating jest snapshots.
* Cleaning up package.json
* Reorganized system console
* Fixed the names of some components
* Fixed timestamp for BrandImageSetting
* Fixed merge issues
* Updated push notification settings to match master branch
* Removed top level setting pages and moved enable Gitlab/LDAP settings onto their respective pages
* Re-added restrictDirectMessage setting to system console
* Re-added email connection test and fixed some margins
* Fixed ESLint errors
* Renamed Authentication > Onboarding to Authentication > Email in the system console
* Renamed Customization > Whitelabeling to Customization > Custom Branding in System Console
* Re-added EnableOpenServer to system console
