Admin/polyml/CHECKLIST

updated to polyml-5.5.1;
prefer explicit POLYML_HOME to simplify additional user settings;

Notes on building Poly/ML as Isabelle component
===============================================

* copy README

* copy build

* copy etc/settings

* include full source (without symlink)

* include sha1 source and binary for each platform

* copy polyml script for each platform

* linux: include copy of libgmp.so with symlinks from build host