Avoid passing non-contiguous position field from and to sam. Don't really understand why/if this is not necessary for sam_add_field and sam_pop_field (this was already non-contiguous for the metric tensor). How's that for a reassuring commit message?
Avoid passing non-contiguous position field from and to sam. Don't really understand why/if this is not necessary for sam_add_field and sam_pop_field (this was already non-contiguous for the metric tensor). How's that for a reassuring commit message?

iakovos-panourgias/fluidity,rjferrier/fluidity,jjo31/ATHAM-Fluidity,jjo31/ATHAM-Fluidity,jjo31/ATHAM-Fluidity,jrper/fluidity,rjferrier/fluidity,rjferrier/fluidity,iakovos-panourgias/fluidity,iakovos-panourgias/fluidity,rjferrier/fluidity,jrper/fluidity,jjo31/ATHAM-Fluidity,jrper/fluidity,jjo31/ATHAM-Fluidity,jrper/fluidity,rjferrier/fluidity,iakovos-panourgias/fluidity,jrper/fluidity,iakovos-panourgias/fluidity