Add category and ideacategories table. Also add associations
Test failing due to rspec upgrade. Attempting to fix
Fixed rspec issues by reinstalling it
Add seed data. Get tests to load seed data
Add categories input to simple form for ideas'
Test passes. Category can now be added to idea on the new page
Merge pull request #4 from asjedh/user_can_add_categories_to_ideas

User can add categories to ideas