* This way re-ordering of GRIB records does not change checksums.

This reverts commit b5845133.

* The previous elimination of components created a subtle data corruption bug.

* This was introduced erroneously in "Renamed DATATYPE_ to CDI_DATATYPE_."
  aka c05b576e.

* Also fixes trailing whitespace in Fortran interface.

* static variables are zero-initialized unless explicitly assigned a value.