Reordered useApp directives
Renamed image to gallery throughout the application
Added stub for activityResultsService
Added activityResultStore to beans.json
Added activityResultStore
Added stubs for activityresultmodel
Added id to activityresult
Added should for better tests
Added subdocument for photos with href prop
Added test stub for activityresultstore
implemented getActivityResultById
Render 404 create form when an activity result is unknown
Render the 'get' template for known activity results