Espruino command-line tool

I'm thinking I'll finally submit the command-line tool for Espruino to NPM, as espruino has become clear now.

... but any thoughts as to what would be a good name for the command? Currently it's espruinotool, but that's pretty longwinded.

What about:

• esp - too short - might get confused with something else?
  
• esptool - probably not given the ESP8266 programmer is already called that :)
  
• espr?
  
• espruino - might get confused with the actual Espruino binary?