# File lib/rbot/config.rb, line 188
    def [](key)
      return @@items[key].value if @@items.has_key?(key)
      return @@items[key.intern].value if @@items.has_key?(key.intern)
      # try to still support unregistered lookups
      # but warn about them
      if @@config.has_key?(key)
        warning "Unregistered lookup #{key.inspect}"
        return @@config[key]
      end
      if @@config.has_key?(key.intern)
        warning "Unregistered lookup #{key.intern.inspect}"
        return @@config[key.intern]
      end
      return false
    end