Add option to disable auto-roll damage about beyond20

[kakaroto]

c = window.Campaign.characters.get("beyond20")
if c is None:
   c = window.Campaign.characters.create({"name": "Beyond20 - Do not delete", "id": "beyond20", "controlledby": "all", "archived": True)
c.abilities.create({"name": "Fireball - 1d6", "action":"&{template:simple} {etc..}", id="msg_hash"})
# Use [link](~beyond20|msg_hash)

[kakaroto]

nope, creating a character would only work if you're the DM, otherwise we get a permission denied.

[kakaroto]

Fixed in 04d8496