Allow a flag nmem_release_in_heap to be set (1) in which case NMEMs are reassigned to the memory heap rather than re-used.. This should make it easier for valgrind etc to find problems.
Allow a flag nmem_release_in_heap to be set (1) in which case
NMEMs are reassigned to the memory heap rather than re-used.. This should
make it easier for valgrind etc to find problems.

nla/yaz,nla/yaz,nla/yaz,dcrossleyau/yaz,dcrossleyau/yaz,dcrossleyau/yaz,nla/yaz