Added simple authorization for trails, segments, trailheads.
Some view cleanup.
Add admin access to all orgs, added some admin upload logic
Added basic trail metadata CSV upload.
Added basic trailhead GeoJSON upload.
GDAL buildpack testing
heroku buildpack shuffling
start of shapefile processing on Heroku
typo fix for heroku
Removed .vendor_urls and RGeo::Shapefile
Updated models to more closely match DS 0.4
Modified rake data load tasks to warn about extra fields
Trailhead shapefile upload, basic import error reporting.
Adding missing Trailsegment.all invocation to segments controller.
Trail editing updates.
Added account seeds and 'rake load:all' meta-task
Merge branch 'auth'