add Location model and initial setup for it
add Photos model and controller
create Photo form for Businesses
can add Photos to Business
add PhotoDetails and start Photo edit/show page
Business photo prelim page done
corrects image display on photo show
photo_details edit/update form works
stars reflect actual ratings
fix typo
business avatar image logic works
changed category tables and seed data
before presentation
can add initial review with new business
 can add reviews with photos
css for review photos
fix image links
add more categories to seed
add Features model
basic layout for category page