add scope published and unpublished to service provider
add filters and panel to display subcategories
modify panel to show parent categories and respective subcategories
clean up seed. Refactor category + subcategory relationship
add sample subcategories to service providers to seed file
create sample subcategory and intervention type relationship
inadvertently removed categories. Re-adding them back to seed file
Merge pull request #7 from dermatobia/st

St