TST: test failures on 3.4/windows for timezones
```
 ======================================================================
ERROR: test_string_index_alias_tz_aware (pandas.tseries.tests.test_timezones.TestTimeZoneSupportDateutil)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "c:\Users\Jeff Reback\Documents\GitHub\pandas\build\lib.win-amd64-3.4\pandas\tseries\tests\test_timezones.py", line 561, in test_string_index_alias_tz_aware
    self.assertAlmostEqual(result, ts[2])
  File "C:\Python34-64\lib\unittest\case.py", line 818, in assertAlmostEqual
    if first == second:
  File "c:\Users\Jeff Reback\Documents\GitHub\pandas\build\lib.win-amd64-3.4\pandas\core\generic.py", line 692, in __nonzero__
    .format(self.__class__.__name__))
ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().

======================================================================
FAIL: test_series_frame_tz_convert (pandas.tseries.tests.test_timezones.TestTimeZones)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "c:\Users\Jeff Reback\Documents\GitHub\pandas\build\lib.win-amd64-3.4\pandas\tseries\tests\test_timezones.py", line 870, in test_series_frame_tz_convert
    assert_frame_equal(result, expected.T)
  File "c:\Users\Jeff Reback\Documents\GitHub\pandas\build\lib.win-amd64-3.4\pandas\util\testing.py", line 578, in assert_frame_equal
    assert col in right
AssertionError

----------------------------------------------------------------------
Ran 7330 tests in 533.475s

FAILED (SKIP=220, errors=1, failures=1)
```
