Version 4.2 bad DLL import

[ruilvo]

On ALP4.py: lines 333, 334:

        elif (version == '4.2'):
            libPath += 'alpD41.dll'

The DLL name is wrong. Should be alpV42.dll or alpV42basic.dll depending of basic or high-speed API.

I imported alpV42.dll and it's working even though I'm not sure I have the basic or HS API access...