1.1.1rc1

• couple of tweaks to the way the plugin loads for my comfort level as new maintainer
• reorganized/simplified settings approach
• added release channels, available in OctoPrint 1.5.0+
• minor verbiage adjustments in dialogs, what's Xeed?

Python 3 compatibility release

Thanks to @Poikilos for creating an issue and @cp2004 for the work on making this Python 3 compatible.