XXX still some tests related to get metadata fail.

also keep backward compatibility with a whitespace separated string that is provided by old ERP5 code.

that prevents detecting the end of unit test.

* use getDocumentProperties() and getUserDefinedProperties() instead of deprecated getDocumentInfo().
* use python3 syntaxes.

Fix issue to get mime type to ms.xlsx format. In this case, the format is splitted to try select a generic format

This script is copy/paste from erp5.git/product/ERP5Type/tests/backportUnittest.py. Then, I applied all changes from the same file to fix the issue.

This reverts commit da0b08a7.

This script is copy/paste from erp5.git/product/ERP5Type/tests/backportUnittest.py. Then, I applied all changes from the same file to fix the issue.

to support psutil-0.7.1.

Add ooo_disable_filter_name_list option to disable ooo filter. This is useful when you want to prevent unnecessary filters to be used.

also make it possible to specify LANG from the configuration file.

The Libreoffice does not raise exception when is a invalid data anymore. One document is created but the data is incosistent

The _getFileType already process decodestring() with the data.

All minor changes are fixes to follow up changes from external sources.
LibreOffice and Imagemagick in this case.

The correspondent reasons are appropriated documented in the code. Switch
some skips to expected failures.