BUG? Reshaping a Series
It looks to me like a bug in pandas.Series.

```
a = pd.Series([1,2,3,4])
b = a.reshape(2,2)
b
```

b has type Series but can not be displayed, the last statement gives exception, very lengthy, the last line is "TypeError: %d format: a number is required, not numpy.ndarray". b.shape returns (2,2), which contradicts its type Series. I am guessing perhaps pandas.Series does not implement reshape function and I am calling the version from np.array. I am at pandas 0.9.1. Some discussion on stackoverflow is here http://stackoverflow.com/questions/14390224/reshape-of-pandas-series

If it does not make sense to reshape a Series, should it throw an exception?
