display runs on river#show page
Set up run.gauges association
WIP, add guage coordinates to river#show page, BROKEN
make river#show page display gauge coordinates - waiting on update from API
inject gauge data into dom element, ready for js map
load filtered gauges into map on river#show page
Merge pull request #11 from bwinterling/river-show-page-runs

Display map with gauges on river#show page