Merge pull request #532 from wolfmanjm/upstreamedge

fix ls
Update config
added mv command to simpleshell
added rename() to stdio.cpp
added ready() to StreamOutput
add upload command to SimpleShell
Merge pull request #534 from wolfmanjm/add/mv_and_upload_commands

added mv command to simpleshell
added max_temp config option to temperaturecontrol
fix typo
Merge pull request #535 from Smoothieware/max-temp

Confirmed to work
update firmware.bin
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