Add multiple temps to panel watchscreen if there are more than two enabled, top line cycles through different temps every 5 seconds
Merge pull request #536 from wolfmanjm/feature/more-temps-in-watchscreen

Add multiple temps to panel watchscreen if there are more than two enabl...
add icons for hotends 2 and 3
Merge pull request #537 from wolfmanjm/upstreamedge

add icons for hotends 2 and 3
Merge branch 'edge' of https://github.com/smoothieware/smoothieware into edge