Merge pull request #5 from baron816/auth

Auth
Merge pull request #6 from baron816/auth

added links to edit and delete in users index
Merge pull request #7 from baron816/auth

Auth
Merge pull request #8 from baron816/auth

Auth
every page renders navbar partial
wrapped each post is post id
wrapped new post form in div and set default size for text_area
show page uses simple_format to render spaces and line breaks
added color schemes and styling for nav
added circle yaml file
Merge pull request #9 from baron816/frontend

Frontend
moved circle file
Merge pull request #10 from baron816/frontend

moved circle file
added roles field to users
moved current user method to application controller
added current user method and authorized helper
only authorized users can edit and delete posts
delete button doesn't show if user isn't authorized
edit button doesn't show if user isn't authorized
added admin role for test user