message: Now the new flow only shows one add node button
diff: @@ -126,7 +126,7 @@ export class FlogoFlowDiagram implements IFlogoFlowDiagram {
  if ( matrixRow.length
  === 1
  && diagram.nodes[ matrixRow[ 0 ] ].type
  - === FLOGO_FLOW_DIAGRAM_NODE_TYPE.NODE_ROOT_NEW ) {
  + === FLOGO_FLOW_DIAGRAM_NODE_TYPE.NODE_ADD ) {
  paddedRow = matrixRow;
  } else {
  paddedRow = matrixRow.concat( '+' ); // append add node symbol
  