F07 "disappeared"

Just to add that on Bangle.js (and the SMA Q3 build) there are two failsafes...

• Pressing the middle button for ~2 secs effectively does a load() command
  
• Pressing BTN1+2 for 10 secs (or Espruino hanging) forces a complete reboot, and if Espruino loads with BTN1 held down, nothing boots
  
  

Potentially we could look at adding similar functionality to the other builds as well...