Fixed more grouping/gate issues in authoring - if the user changed the type of grouping or gate after saving, the gate/grouping type was not updated. Now a new record is created with the new type.
Random grouping now working. Fixed issues in authoring - was trying to look up grouping by UUID and that won't work for more than one design with grouping (as the UUIDs may be duplicated). Modified authoring to get all the existing groupings via the grouping activities.