some timeline refactoring, preparing for rewrites

app/node/input.h

@@ -106,7 +106,7 @@ public:
     emit DataTypeChanged(type);
   }
 
-  const QHash<int, Node*>& edges() const
+  const QMap<int, Node*>& edges() const
   {
     return input_connections();
   }
@@ -367,6 +367,10 @@ private:
 
   void SaveImmediate(QXmlStreamWriter *writer, int element) const;
 
+  void ChangeArraySizeInternal(int size);
+
+  NodeInputImmediate* CreateImmediate();
+
   const NodeInputImmediate* GetImmediate(int element = -1) const
   {
     return element > -1 ? subinputs_.at(element) : primary_;