fix db schema
add posts lists on page load
fix
[#3] Creating post sets user properly.
Merge branch 'feature/3_homepage' of github.com-gerov:savayg/buzzstarter-training into feature/3_homepage
Merge branch 'feature/3_homepage' into feature/4_post_page

Conflicts:
	app/admin/post.rb
	db/schema.rb
Merge branch 'feature/4_post_page' into feature/5_users_login

Conflicts:
	db/schema.rb