Test

-with/without mpi
-with/without openmp
-with/without ftimings
-with/without redirect

all kernels

The MKL link-line was not set correctly

Also tested
-double|single precision mpi openmp
-double|single precision nompi openmp

Also test:

- double precision without mpi
- single precision without mpi

In ELPA_GPU branch, also test single-precision builds

Setup a build test for ELPA without MPI