Release: v19.3.2

Use `env` to use the perl in the user PATH instead of a hard path.

Corrected syntax issues in some Make template files.

Release 19.3.1

* Fix quoting on git-version-string in mkmf
* Added required Autotools preprocessor macros to Make templates
* Added netcdf and MPI preprocessor macros to ncrc sites

Version 19.3.0

Add -l <linkflags> option.

* With -l <linkflags> the <linkflags> will be added to the makefile
  during the link step.

Version 19.1.0

* New option (-g) to add git file hash to indicate if a file has changed
  on the compile line