code: public SettingsPack activeLimit(int value) {
          sp.set_int(settings_pack.int_types.active_limit.swigValue(), value);
          return this;
      }
docs: {@code active_limit} is a hard limit on the number of active (auto
  managed) torrents. This limit also applies to slow torrents.
  
  @param value the value
  @see #activeLimit()