Merge branch 'move_multi' into 'NIFTy_4'

Move "multi"-related functionality from GlobalNewton to NIFTy

See merge request ift/NIFTy!251
7 jobs for NIFTy_4 in 18 minutes and 41 seconds
Status Name Job ID Coverage
  Build Docker
passed build_docker_from_scratch #546035

00:07:11

 
  Test
passed test_python2_mpi #546038

00:09:56

passed test_python2_scalar #546036

00:02:34

65.0%
passed test_python3_mpi #546039

00:09:30

passed test_python3_scalar #546037

00:01:41

 
  Release
passed pages #546040

00:00:50

 
  Deploy
passed pages:deploy

00:00:00