Fix: Now uses device if set in cli parameters

[mahenning]

No description provided.

[mahenning]

The fix in the second commit was tricky, if you use

from .misc import SCRAIBE_NUM_THREADS

then SCRAIBE_NUM_THREADS becomes a local copy in the file. If SCRAIBE_NUM_THREADS in misc is later changed, the local copy stays the same in the file it was imported ealier. So when using it as a default parameter in load_model() after changing it in set_threads(), the default parameter in load_model() has the initial value it had when loading everything in the __init__.py.