pydata/pandas — pull request #8652 by jreback (2014-10-27 13:14:02+00:00)
Title: BUG: various categorical fixes (GH8626)

BUG: coerce Categorical in record array creation (GH8626)
BUG: Categorical not created properly with to_frame() from Series (GH8626)
BUG: handle astype with passed pd.Categorical (GH8626)

closes #8626