Version 1.8-2, 2016-02-21
  * Add support for POSIXct timestamps to utcal.nc and utinvcal.nc.
  * Use nc-config by default in configure to find netcdf build settings.
  * Allow customisation of configure by variables CPPFLAGS, LDFLAGS and LIBS,
    and remove the following options: --with-netcdf-include, --with-netcdf-lib,
     --with-hdf5-lib, --with-udunits-include, --with-udunits-lib.

Version 1.7-3, 2015-05-09
  * Support reading/writing NC_CHAR as vectors of raw bytes
  * Avoid intermediate copies of array data when possible
  * Fix memory errors reported by valgrind for udunits2 calendar functions.
  * Support compilation with udunits.h inside a udunits2 sub-directory.
  * Add udunits data files to source package to ensure they can be found
    when building binary packages for Windows and Mac.

Version 1.6.3-1, 2014-09-01
  * Allow reading of character vector or scalar

Version 1.6.2-3, 2014-06-16
  * Added HDF5 licence file for distribution

Version 1.6.2-2, 2014-05-27
  * Corrected potential memory leak in read/write of character arrays

Version 1.6.1-2, 2012-07-20
  * Added function read.nc
  * Added packing/unpacking of data

Version 1.5.3-1, 2012-02-15
  * Optionally copy udunits data files during installation of RNetCDF.
  * When loading RNetCDF in R, initialise udunits with copied data files.

Version 1.5.2-2, 2011-01-06
  * configure adds tests for extra libraries used by netcdf4 on some systems.
  * Avoid repeated zeroing of character arrays in C interface.

Version 1.5.0-1, 2010-12-30
  * Add new modes (large, prefill, share) to nc_open and nc_create.
  * Avoid unnecessary switching of define and data modes in C library
    to prevent unwanted data movement within a file.
  * configure script accepts optional path for hdf5 (for netcdf4 library).
  * Added basic functional tests of package.

Version 1.2-1.1, 2010-05-11
  * Add build scripts for Windows.

Version 1.2-1, 2006-07-26
  * utcal.nc and utinvcal.nc optionally handle dates in string form.
  * configure script accepts optional paths for netcdf and udunits.

Version 1.1-3, 2005-03-21
  * Minor bugfix for detection of udunits headers in configure script.

Version 1.1-2, 2005-01-04
  * Return proper error status in C functions R_nc_sync and R_nc_get_vara_text.

Version 1.1-1, 2004-09-19
  * Add option to collapse singleton dimensions when reading arrays.
  * Allow reading of arrays without conversion of missing values.

Version 1.0-4, 2004-09-11
  * Search extra directories during configure.

Version 1.0-3, 2004-08-01
  * First release based on netcdf package by Thomas Lumley
    and ncdf package by David Pierce.
