--------------------------------
* Added the :func:`set_properties` workbook method for setting document
properties.
* Added several new examples programs with documentation. The examples now
include:
* array_formula.py
* cell_indentation.py
* datetimes.py
* defined_name.py
* demo.py
* doc_properties.py
* headers_footers.py
* hello_world.py
* merge1.py
* tutorial1.py
* tutorial2.py
* tutorial3.py
* unicode_polish_utf8.py
* unicode_shift_jis.py