Initial rails/db config
added first trail and trailhead models
added segment model & traildata import rake task
added segment rake task, srid to models
added scaffolding for trails and trailheads
Added GeoJSON feature/collection responses to TrailheadsController
Added segments controller, oj to speed up json rendering
Added trailhead distance calculation & CORS headers
Factored out distance calculation
TrailsController now returning GeoJSON
Added development_aws environment for AWS DB testing
updated gemfile for heroku
modified Gemfile.lock for heroku
CORS/Heroku testing
removed pg schema search path because heroku won't use it
Adding unicorn to see what happens.
Renaming fields to (more closely) match standard 0.3.1
Re-enabled HTML view for trails
Updated seed data and tasks for DS 0.3.1
simplifying DB setup for Heroku for now