Pandas install fails on Python 3.3
From http://travis-ci.org/#!/msabramo/pandas/jobs/1521690:

```
File "/home/vagrant/builds/msabramo/pandas/pandas/__init__.py", line 24, in <module>
    from pandas.core.api import *
  File "/home/vagrant/builds/msabramo/pandas/pandas/core/api.py", line 10, in <module>
    from pandas.core.format import (set_printoptions, reset_printoptions,
  File "<string>", line None
SyntaxError: invalid syntax (format.py, line 186)
```

I think it's because that line uses a Unicode literal which doesn't exist in 3.2:

``` python
info_line = (u'Empty %s\nColumns: %s\nIndex: %s'
```
