* Check in auth flow work.
* More work on auth steps. Check in before redux state.
* Create auth reducer and actions
* Stubbed out profile page to test auth aware routes. Minor style fixes.
* Fill out provider components
* Handle missing origin
* Fix reducer mistake. Show user info in profile page.
* Reflect auth state in header.
* tslint
* Actual user creation.
* Implement sign in
* Fix redux types.
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