remove unnecessary files
Adds authors as a resource
Basic polymorphic setup
setup of controller and views for polymorphic association on review
file uploading for picture attribute on author
class changes
Merge pull request #7 from mttdffy/solutions

Solutions
Merge pull request #8 from mttdffy/week_08_examples

Week 08 examples
postgres setup for nitrous
Merge pull request #9 from mttdffy/postgres_setup

Postgres setup