Add BCrypt to Gemfile
Add login methods to ApplicationController and SessionsController
Add routes for User, Post, and Session models
Add authentication-related methods to User model
Add UsersController#create
Add new user and login pages
Do migration to add username, password, and token columns to users table
Add title, body, and user_id columns to posts table
Add associations to Post and User models
Replace instances of 'password' in input parsing to 'password_hash'
Add FriendCircle model and controller
Update BCrypt listing in Gemfile
Seed database
Add users_friend_circles join table
Fix new friend circle page
Create friend_circles table
Fix seed commands
Change app name from FriendCircle to GoogleMinus in order to remove conflict with model 'FriendCircle'
Drop table users_friend_circles
Add table friend_circle_memberships