Send auth headers when getting sign in details.
Fixing trying to save settings on server for not-signed in user.
Save original street id when remixing.
Esc hides menus.
Auto-promote when redirected from Twitter sign in.
Merge branch 'twitter-sign-in' of https://github.com/codeforamerica/streetmix into twitter-sign-in
Auto-promote when redirected from Twitter sign in.