TST Fix AttributeError: 'iterator' object has no attribute 'next' on Python 3
```
======================================================================
ERROR: test_pie_series (pandas.tests.test_graphics.TestSeriesPlots)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "X:\Python34\lib\site-packages\pandas\tests\test_graphics.py", line 484, in test_pie_series
    expected_texts = list(it.next() for it in itertools.cycle(iters))
  File "X:\Python34\lib\site-packages\pandas\tests\test_graphics.py", line 484, in <genexpr>
    expected_texts = list(it.next() for it in itertools.cycle(iters))
AttributeError: 'iterator' object has no attribute 'next'

----------------------------------------------------------------------
```

thanks!

turns out was not running slow tests on 3.4 on windows, duh!

FYI, announced 0.14.0 rc1: https://groups.google.com/forum/#!topic/pydata/Bx8oiSAZwOc
 @cgohlke 

out of curiosity, how do you know when say pandas releases a rc1? (are you scanning the master repo for changes?) are you looking for say a RLS tag?
 @jreback  I subscribe to https://github.com/pydata/pandas/releases.atom
 all these neat features...cool.thxs
 @cgohlke v0.14.0 tagged and released!
 @cgohlke thanks for the windows builds!
 Let me know if you want to distribute wheels built against older numpy versions (>= 1.6.2).
 thanks

I think ok for now 

will let u know if I have requests
