add trailing slashes to api endpoints
add trailing slashes to api endpoints

mvexel/maproulette,Crashfreak/maproulette,Crashfreak/maproulette,osmlab/maproulette,mvexel/mr-tnav,mvexel/maproulette,osmlab/maproulette,osmlab/maproulette,mvexel/mr-tnav,mvexel/maproulette,Crashfreak/maproulette,mvexel/maproulette,osmlab/maproulette,Crashfreak/maproulette