0.4.31.112

• FIX - SSTUModularEngineCluster will no longer adjust part mass when ModuleEngineConfigs is present on the part (fix for RO/ModuleEngineConfigs mass problems)
• FIX - SSTUModularEngineCluster now uses updated method for calculating the mount size needed for any given engine/mount configuration, with additional/fixed handling for scaled engine models.
• FIX - SSTUModuleSwitch will now properly update its persistent-data values for current model enabled/disabled status.
• FIX - SSTUNodeFairing will now properly update its persistent-data values for fairing enabled/disabled/size status.
• FIX - Some inconsistencies in handling of engine spacing overrides in relation to engine scale; all engine spacing values will now be properly effected by scale.
• CHANGE - Update to engine-mount sizing calculation code to make it much easier to understand (and work on); should not effect any existing craft, nor have any visible impact on new parts.
• CHANGE - Adjust spacing multiplier for 9-center mount type; this will not effect any in-flight craft and is only used to determine the initial mount sizes available to the mounts in that layout.