* 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
* post message at-mention profile pop-over
* remove hover effect to special mentions
* make non-clickable the non-existing at-mention username
* fix "video call" position
* use usernameMap instead of initially defined liteUsernameMap
* update per comments
* Start moving webapp to Redux
* Fix localforage import
* Updates per feedback
* Feedback udpates and a few fixes
* Minor updates
* Fix statuses, config not loading properly, getMe sanitizing too much
* Fix preferences
* Fix user autocomplete
* Fix sessions and audits
* Fix error handling for all redux actions
* Use new directory structure for components and containers
* Refresh immediately on logout instead of after timeout
* Add fetch polyfill
