Vvv temporary fix for #239 - use OSM tile server
merged changes from prod
Merge pull request #240 from andylolz/develop

Vvv temporary fix for #239 - use OSM tile server
Change map tile server to Mapbox

The map ID is from @hubgit's Mapbox account.
Merge pull request #244 from OAButton/239

Change map tile server to Mapbox