UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 20355: ordinal not in range(128)
While building a fresh package (out of snapshot of master at bc7d48f, since the last release had way too many failures) for Debian I am running into

```
======================================================================
ERROR: test_file_like (pandas.io.tests.test_html.TestReadHtml)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/buildd/pandas-0.16.1+git97-gbc7d48f/debian/tmp/usr/lib/python3/dist-packages/pandas/io/tests/test_html.py", line 284, in test_file_like
    df1 = self.read_html(f, '.*Water.*')
  File "/tmp/buildd/pandas-0.16.1+git97-gbc7d48f/debian/tmp/usr/lib/python3/dist-packages/pandas/io/tests/test_html.py", line 92, in read_html
    return read_html(*args, **kwargs)
  File "/tmp/buildd/pandas-0.16.1+git97-gbc7d48f/debian/tmp/usr/lib/python3/dist-packages/pandas/io/html.py", line 865, in read_html
    parse_dates, tupleize_cols, thousands, attrs, encoding)
  File "/tmp/buildd/pandas-0.16.1+git97-gbc7d48f/debian/tmp/usr/lib/python3/dist-packages/pandas/io/html.py", line 728, in _parse
    raise_with_traceback(retained)
  File "/tmp/buildd/pandas-0.16.1+git97-gbc7d48f/debian/tmp/usr/lib/python3/dist-packages/pandas/compat/__init__.py", line 708, in raise_with_traceback
    raise exc.with_traceback(traceback)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 20355: ordinal not in range(128)

======================================================================
ERROR: test_string (pandas.io.tests.test_html.TestReadHtml)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/buildd/pandas-0.16.1+git97-gbc7d48f/debian/tmp/usr/lib/python3/dist-packages/pandas/io/tests/test_html.py", line 275, in test_string
    data = f.read()
  File "/usr/lib/python3.4/encodings/ascii.py", line 26, in decode
    return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 20355: ordinal not in range(128)

======================================================================
ERROR: test_string_io (pandas.io.tests.test_html.TestReadHtml)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/buildd/pandas-0.16.1+git97-gbc7d48f/debian/tmp/usr/lib/python3/dist-packages/pandas/io/tests/test_html.py", line 264, in test_string_io
    data1 = StringIO(f.read())
  File "/usr/lib/python3.4/encodings/ascii.py", line 26, in decode
    return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 20355: ordinal not in range(128)
```

when building with Python 3.4.3+ .  Locale is set to C while running tests
