Failing filter tests about pywo HOT 2 CLOSED

In my GitHub branch for this issue, I made the diffs easier to read by using 
unittest2 if available and including a name for test windows:

https://github.com/akaihola/PyWO/commit/fc6e65d2b07ea6abe5f6a0be87781ee374f98fc8

The failures are now:

======================================================================
FAIL: test_standard_type (__main__.IncludeExcludeTypeTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "tests/core/filters_test.py", line 57, in test_standard_type
    self.utility_win, self.dialog_win])
  File "tests/core/filters_test.py", line 25, in assertWindows
    self.assertEqual(windows_ids, filtered_windows_ids)
AssertionError: Items in the first set but not the second:
(9527, 'dock')

======================================================================
FAIL: test_standard (__main__.CombinedFiltersTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "tests/core/filters_test.py", line 256, in test_standard
    self.desktop2_viewport2_win])
  File "tests/core/filters_test.py", line 25, in assertWindows
    self.assertEqual(windows_ids, filtered_windows_ids)
AssertionError: Items in the first set but not the second:
(1248, 'dock')

Thanks for pointing this out! 
Just sent the commit with appopriate changes in test suite.

BTW, got to check unittest2, seems to have some very nice features.