read_html failing in many tests:  AssertionError: No tables found
typical error with 

```
======================================================================
FAIL: test_banklist (pandas.io.tests.test_html.TestReadHtmlBase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/yoh/deb/gits/pkg-exppsy/build-area/pandas-0.11.0+git43-g7b2eaa4/debian/tmp/usr/lib/python2.7/dist-packages/pandas/io/tests/test_html.py", line 114, in test_banklist
    attrs={'id': 'table'})
  File "/home/yoh/deb/gits/pkg-exppsy/build-area/pandas-0.11.0+git43-g7b2eaa4/debian/tmp/usr/lib/python2.7/dist-packages/pandas/io/tests/test_html.py", line 67, in run_read_html
    return read_html(*args, **kwargs)
  File "/home/yoh/deb/gits/pkg-exppsy/build-area/pandas-0.11.0+git43-g7b2eaa4/debian/tmp/usr/lib/python2.7/dist-packages/pandas/io/html.py", line 900, in read_html
    attrs)
  File "/home/yoh/deb/gits/pkg-exppsy/build-area/pandas-0.11.0+git43-g7b2eaa4/debian/tmp/usr/lib/python2.7/dist-packages/pandas/io/html.py", line 769, in _parse
    raise retained
AssertionError: No tables found
```
