added initial city table migration
added example models for review
correcting DB migrate error
attempting to correct DB migrate error. Copied orginal migration from master to delop
Added new migration for City table, and updated one model migration
added travel_within_city to city table migration
choice tables added
added many db models and migrations
new models and migrations
updated schema
 added vibe model and migration
created new DB schema. Deleted all former migrations and tables
city category assocciations added
added ID to cities index, changed font size in city list
average prices added to city model, displaying to show
remove industry column from cities table
fix git merge conflicts
added average price of gas
added average price of gasoline
added value column