ran migration for unique index
Merge pull request #3 from feministy/models

updated models with relationships; added uniqueness index to users; added validations for users :thumbsup:
Merge branch 'master' of https://github.com/feministy/vows into sessions
static home page created with logging in and out
application layout created with responsive grid and basic CSS
created anonymous user menu and logged in user menu
partial for rendering errors gracefully for forms
partial for header logo
added static home page using high voltage pages
users can log in and logout - sessions#new, #ncreate, #destroy
moved current_user helper into app helper since it is used by many controllers/pages
users can create an account and are redirected to (empty) users#show
include ApplicationHelper into all controllers
deleted ugly erb in favor of slim