read_hdf not supporting pathlib.Path
According to the Enhancements text for 17.1:

> pd.read_\* functions can now also accept pathlib.Path, or py._path.local.LocalPath objects for the filepath_or_buffer argument. (GH11033) 

all read_\* functions should support pathlib.Path now. It works for me with `read_csv` but not for `read_hdf`. 
Interestingly, I find in the squashed PR for this issue, 0d3dcbb, only a comment regarding `read_csv` and `read_table`, while the merge 82f0033 talks about `read_*`. Is there something missing for `read_hdf` ?
