require RCON password to enable

[BrettMayson]

Server won't launch with current defaults

BACKEND      : Loading dedicated server config.
 BACKEND      : JSON Schema Validation:
  BACKEND      : minLength error:
   BACKEND   (E): Param "#/rcon/password" is bellow the minimum limit of value/length. The minimum allowed is 3.
   BACKEND   (E): RegEx Pattern: "^[^ ]*$"
   BACKEND   (E): Pattern Description: "Spaces are not allowed."
   BACKEND   (E): Reference in schema: "#/properties/rcon/properties/password"
  BACKEND   (E): JSON is invalid!
 BACKEND   (E): There are errors in server config!
BACKEND   (E): Unable to continue with a broken DS config! Shutdown!

[hafometh88]

hmmm BI must have changed the validation, it worked fine before