Socket.IO install and basic test
Add ember-simple-auth configuration to ember/config/environment.js

Added configuration for 'simple-auth-devise' and 'simple-auth-authorizer:devise'
to send authentication credentials in headers.
Starting with contacts
Contacts, inverse contacts, and other users in ember app
Add gems Foreman and Redis
Current user
Exclude current user from the 'Add new contacts' page
Update rails and some other gems
Add route and template for root path
Update ember and other js packages
Add db seeds
Fix for UsersController#index
Create conversations and messages on backend
Starting with conversations in the frontend
Can create messages
Receive messages via socket.io