newdir does not work on Windows

[blebon]

I tried to run the example in puq/examples/wrappers/newdir_with_input_template/ on Windows (7 64 bit) with Python 3.6.0 and get the following error:

`D:\Cases\PUQ\newdir_example>puq start quad_file
Saving run to sweep_238741688.hdf5

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ERROR: python ..\sim_file_wrap.py 1 2 3 -5.0 returned 1
The system cannot find the path specified.

Stdout is in sweep_238741688_1.out and stderr is in sweep_238741688_1.err.

---

---

ERROR: python ..\sim_file_wrap.py 1 2 3 0.0 returned 1
The system cannot find the path specified.

Stdout is in sweep_238741688_0.out and stderr is in sweep_238741688_0.err.

---

---

ERROR: python ..\sim_file_wrap.py 1 2 3 5.0 returned 1
The system cannot find the path specified.

Stdout is in sweep_238741688_2.out and stderr is in sweep_238741688_2.err.

---

---

ERROR: python ..\sim_file_wrap.py 1 2 3 -3.53553390593 returned 1
The system cannot find the path specified.

Stdout is in sweep_238741688_3.out and stderr is in sweep_238741688_3.err.

---

---

ERROR: python ..\sim_file_wrap.py 1 2 3 3.53553390593 returned 1
The system cannot find the path specified.

Stdout is in sweep_238741688_4.out and stderr is in sweep_238741688_4.err.

---

5 jobs had errors.
STDERR[job 0]: The system cannot find the path specified.
STDERR[job 1]: The system cannot find the path specified.
STDERR[job 2]: The system cannot find the path specified.
STDERR[job 3]: The system cannot find the path specified.
STDERR[job 4]: The system cannot find the path specified.
WARNING: There is no data in the output section!
Check that your runs completed successfully.
Traceback (most recent call last):
File "c:\users[edited]\appdata\local\continuum\miniconda3\lib\runpy.py", line 193, in _run_module_as_main
"main", mod_spec)
File "c:\users[edited]\appdata\local\continuum\miniconda3\lib\runpy.py", line 85, in run_code
exec(code, run_globals)
File "C:\Users[edited]\AppData\Local\Continuum\Miniconda3\Scripts\puq.exe_main.py", line 9, in
File "c:\users[edited]\appdata\local\continuum\miniconda3\lib\site-packages\puq\puq_cmd.py", line 404, in main
res = funcsargs[0]
File "c:\users[edited]\appdata\local\continuum\miniconda3\lib\site-packages\puq\puq_cmd.py", line 171, in start
res = sw.run(opt.f)
File "c:\users[edited]\appdata\local\continuum\miniconda3\lib\site-packages\puq\sweep.py", line 172, in run
return self.psweep.run(self)
File "c:\users[edited]\appdata\local\continuum\miniconda3\lib\site-packages\puq\psweep.py", line 40, in run
sweep.psweep.analyze(hf)
File "c:\users[edited]\appdata\local\continuum\miniconda3\lib\site-packages\puq\smolyak.py", line 74, in analyze
process_data(hf, 'smolyak', self._do_rs)
File "c:\users[edited]\appdata\local\continuum\miniconda3\lib\site-packages\puq\util.py", line 68, in process_data
for var in hf['output/data']:
File "h5py_objects.pyx", line 54, in h5py._objects.with_phil.wrapper (C:\Minonda\conda-bld\h5py_1490028727645\work\h5py_objects.c:2867)
File "h5py_objects.pyx", line 55, in h5py._objects.with_phil.wrapper (C:\Minonda\conda-bld\h5py_1490028727645\work\h5py_objects.c:2825)
File "c:\users[edited]\appdata\local\continuum\miniconda3\lib\site-packages\h5py_hl\group.py", line 169, in getitem
oid = h5o.open(self.id, self._e(name), lapl=self._lapl)
File "h5py_objects.pyx", line 54, in h5py._objects.with_phil.wrapper (C:\Minonda\conda-bld\h5py_1490028727645\work\h5py_objects.c:2867)
File "h5py_objects.pyx", line 55, in h5py._objects.with_phil.wrapper (C:\Minonda\conda-bld\h5py_1490028727645\work\h5py_objects.c:2825)
File "h5py\h5o.pyx", line 190, in h5py.h5o.open (C:\Minonda\conda-bld\h5py_1490028727645\work\h5py\h5o.c:3628)
KeyError: "Unable to open object (Object 'data' doesn't exist)"`

Changing the separator to / or \ does not make any difference. Other PUQ examples without newdir work fine.