Issues with FRED Tests
I am having tests fail with the following, code I do not believe that I touched:

```
FAIL: test_fred_multi (pandas.io.tests.test_data.TestFred)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/pandas/util/testing.py", line 1135, in wrapper
    return t(*args, **kwargs)
  File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/pandas/io/tests/test_data.py", line 455, in test_fred_multi
    assert_frame_equal(received, expected, check_less_precise=True)
  File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/pandas/util/testing.py", line 509, in assert_frame_equal
    check_less_precise=check_less_precise)
  File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/pandas/util/testing.py", line 458, in assert_series_equal
    assert_almost_equal(left.values, right.values, check_less_precise)
  File "testing.pyx", line 58, in pandas._testing.assert_almost_equal (pandas/src/testing.c:2554)
  File "testing.pyx", line 93, in pandas._testing.assert_almost_equal (pandas/src/testing.c:1796)
  File "testing.pyx", line 140, in pandas._testing.assert_almost_equal (pandas/src/testing.c:2387)
AssertionError: expected 217.47800 but got 217.46600
======================================================================
FAIL: test_fred_parts (pandas.io.tests.test_data.TestFred)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/pandas/util/testing.py", line 1135, in wrapper
    return t(*args, **kwargs)
  File "/home/travis/virtualenv/python2.7_with_system_site_packages/local/lib/python2.7/site-packages/pandas/io/tests/test_data.py", line 424, in test_fred_parts
    self.assertEqual(df.ix['2010-05-01'][0], 217.23)
AssertionError: 217.29900000000001 != 217.23
```
