Feed names' case-sensitive during publish

[phord]

The docs say the feednames are case-insensitive, but the code in AdafruitIO_Group::getFeed searches for the feednames using case-sensitive strcmp. This means I could get unexpected results if I publish to "FOO" and to "foo" in the same message. This weird different-case scenario also happens if IO messages are showing up in my group feed as in #122 as well.

[phord]

After reading this article about naming things I can see I am confusing feed names and feed keys.

Maybe my real problem is just that #122 is causing my Group data list to be populated with key-names where I am expecting feed-names.

Let me close this while I try to sort out what's really expected here.