Adds the river model
Adds ActiveResource
Adds river and river spec
complete run model and association to river
use rails config var for api_base_url in river and run
Refactors Gauge model to use ActiveResource
Merge pull request #5 from bwinterling/favorites

Setting up models to retrieve endpoints from other app
Merge branch 'master' into river-show-page
create river#show page and display river name