[Test Suite] [Windows] Acceptance test fails on windows

[Nadia Alramli]

Should take into account reserved characters: http://en.wikipedia.org/wiki/Filename#Comparison_of_file_name_limitations

E:\phatch\tests>python acceptance_test.py --all --extended
Traceback (most recent call last):
  File "acceptance_test.py", line 221, in <module>
    choices_function=choices_function,
  File "E:\phatch\tests\test_suite\phatchtools.py", line 178, in generate_action
lists
    utils.write_file(output_path, repr(dump(actionlist)))
  File "E:\phatch\tests\test_suite\utils.py", line 57, in write_file
    f = open(path, 'w')
IOError: [Errno 22] invalid mode ('w') or filename: u'E:\\phatch\\tests\\output\
\actionlists\\Save-As=<type>-ShowTypeOps=0.phatch'

[Nadia Alramli (nadiana)]

Pushed the fix to the acceptance_test branch