Multiple UPS access

[NemethS70]

Hello,
i have 3 UPS at home and it would be wonderfull if i could chose a configured one to see details.

[gbakeman]

Good idea. See also #90 for this. I initially dismissed it, but that was back when I thought I'd just be doing simple maintenance on WinNUT. The scope has inevitably grown, and now WinNUT has become more of a platform for me to test future designs and technology. It's entirely possible WinNUT may still see multi-UPS monitoring. Stay tuned, and thank you for the feedback!