New port: devel/py-yamlordereddictloader

This module provide a loader and a dumper for PyYAML allowing to keep items
order when loading a file (by putting them in OrderedDict objects) and to
manage OrderedDict objects when dumping to a file.

WWW: https://pypi.python.org/pypi/yamlordereddictloader

PR: 240895
Submitted by: Sergey Akhmatov <sergey@akhmatov.ru>