Merge branch 'clean_getrf_perm' into 'master'

compute/pzgetrf.c

compute/zgetrf.c

control/compute_z.h

control/descriptor_helpers.c

include/chameleon/constants.h

include/chameleon/descriptor_helpers.h

include/chameleon/tasks_z.h

runtime/openmp/codelets/codelet_zipiv_allreduce.c

runtime/openmp/codelets/codelet_zperm_allreduce.c

runtime/parsec/codelets/codelet_zipiv_allreduce.c

runtime/parsec/codelets/codelet_zperm_allreduce.c

runtime/quark/codelets/codelet_zipiv_allreduce.c

runtime/quark/codelets/codelet_zperm_allreduce.c

runtime/starpu/codelets/codelet_zgetrf_batched.c

runtime/starpu/codelets/codelet_zipiv_allreduce.c

runtime/starpu/codelets/codelet_zlaswp_batched.c

runtime/starpu/codelets/codelet_zperm_allreduce.c