test release of PnetCDF 1.6.0.pre1

[Wei-keng Liao]

Hello to our PnetCDF community,

The test release of 1.6.0.pre1 is now available. We are sincerely soliciting
feedbacks from the PnetCDF community for this test release. The tar balls can
be downloaded from:
http://cucis.ece.northwestern.edu/projects/PnetCDF/download.html

Below is a brief list of noticeable changes. For more detailed changes, please
refer to the release note in
http://trac.mcs.anl.gov/projects/parallel-netcdf/wiki/ReleaseNotes-1.6.0.pre1

 o New APIs
   * bput varn API family.
   * iput/iget varn API family
   * vard API family
   * Collective var1 API family
   * ncmpi_inq_buffer_size() returns the remaining size of buffer previously attached
   * ncmpi_inq_recsize() returns the size of record block
   * ncmpi_inq_num_rec_vars() and ncmpi_inq_num_fix_vars() report the numbers
     of record and fixed-size variables, respectively.

 o Semantics updates
   * Header consistency mechanism has been updated. See README.consistency for details.

 o PnetCDF hint priority
   * The alignment hints set in the environment variable "PNETCDF_HINTS" have
     the highest priority, which overwrite the alignment hints set in
     ncmpi__enddef(), which overwrite the alignment hints set in the MPI_Info
     object used in the call of ncmpi_create() and ncmpi_open().

 o Other updates:
   * new error codes, test programs, example programs, and bug fixes

Wei-keng Liao