Series(series) discards name attribute
Data and index are preserved, but not name:

```
>>> import pandas
>>> pandas.__version__
'0.8.0'
>>> s = pandas.Series([1, 2, 3], index=[4, 5, 6], name="NAME")
>>> s
4    1
5    2
6    3
Name: NAME
>>> pandas.Series(s)
4    1
5    2
6    3
```
