Add spring to bin
Add user model and migration
Add generated goals controller
Set up new public vs non public pages
Basic home page
Invitable migration, remove .html layout
Add pry
Add basic Goal creation
Add basic updating
Add basic GoalsController#destroy
Add basic affirmations model and migration
Add index to affirmations
Add relationships to Goal and Affirmation to User
Add basic affirmations controller and routes

This commit also consolidates the `set_goal` before filter