Merge branch 'develop' into trip_management
Add Photo model

with automatic creation of thumbnails
Add Comments functionality

model, view, add comments
Change trip view to show photoswipe gallery
Change admin view: show Photo's thumbnails
Add view for upload photos to trip
Change dropzone upload to prevent autoupload of dropped files
Change trips photo admin view to include trip filter and title search
Add edit photos feature
Change elevation graph, use Leaflet.Elevation plugin
Merge branch 'trip_management' into develop
Merge branch 'develop' into ux
Add personal stats to dashboard
Merge branch 'ux' into develop