make facebook login conditional on a FB app ID being set (also hid twitter button for now)
make facebook login conditional on a FB app ID being set (also hid twitter button for now)

mysociety/fixmytransport,mysociety/fixmytransport,mysociety/fixmytransport,mysociety/fixmytransport,mysociety/fixmytransport,mysociety/fixmytransport