adds some indentation to post partial
bundle update
adds tables for trip plans and trip_plan_items
cleans up sidebar
creates trip plans controller
adds routes for trip plans
adds show method to trip_plans controller
 adds a route for users that shows all of their trips
removes index method from controller
adds links to create a trip plan and view a user's trip plans
creates the method and the views for a new trip_plan
creates the model for trip_plan