timezone aware DatetimeIndex from datetime.datetime (regression)
The following code worked in pandas 0.8.0b1, but not longer in 0.8.1:

```
import pandas as pnd
from datetime import datetime
from dateutil.tz import tzoffset
values = [188.5, 328.25]
index = [datetime(2012, 5, 11, 11, tzinfo=tzoffset(None, 7200)), datetime(2012, 5, 11, 12, tzinfo=tzoffset(None, 7200))]
series = pnd.Series(data = values, index = index)
```

What would you propose as a workaround?

Python 2.7.2, Numpy 1.6.1
