Add settings and model changes to support direct S3 uploads
Add client-side logic for file uploads and add partials for form fields
Add server-side logic to upload files to AWS
Add dynamic javascript templates for file uploads
Use S3 direct uploads for course creation form
Modify templates and seed data to use file upload URLs
Separate img vs file uploads
Update file upload fields to work on edits
Fix status field display bug for teachers
Update README.md
Add documentation for uploading files
Fix file uploads in admin review page
Cleanup unused imports and comments
Merge pull request #51 from calblueprint/upload_configs

Upload configs