2v02 breaks setAdvertising on puck.js

Phew - just tested this, and it's not a complete disaster.

If you:

• Connect via BLE
  
• Upload NRF.setAdvertising({ 0x180F : [95] });`
  
• Disconnect via BLE
  
  

Then it doesn't work - however if NRF.setAdvertising is called when you're not connected via BLE (like in most cases) then it does appear to still work fine.

I'll still try and get this fixed as soon as possible though - issue filed for it here: https://github.com/espruino/Espruino/issues/1659