Make spglib version check more robust

[giovannipizzi]

See discussion and comment in spglib/spglib#478

[DanielYang59]

I'm also seeing this error installing from a dev build of spglib, thanks for catching this:

>>> print(spglib.__version__)
2.5.1.dev28+gf0db532

        try:
>           version_pieces = [int(_) for _ in version.split(".")]
E           ValueError: invalid literal for int() with base 10: 'dev28+gf0db532'

[t-reents]

Hi @DanielYang59!

Thanks for the report. I'll do a new release including a more robust version check and further changes early January. For now, you could use my PR branch #107 and do a rebase. I just tested it and you shouldn't get that error anymore.

[DanielYang59]

Hi thanks for your quick response and the fix, in fact I'm not really using the dev build in production, just trying to provide some info in case it's helpful :)