finished conforming renderers to new node structure

Stateless node system is done! Functionality is about equal to the functionality
in master meaning this is ready for merging.

app/render/backend/renderworker.cpp

@@ -48,6 +48,8 @@ NodeValueTable RenderWorker::RenderAsSibling(NodeDependency dep)
   QList<NodeInput*> connected_inputs;
   NodeValueTable value;
 
+  //qDebug() << "Processing" << node->id();
+
   // Set working state
   working_++;
 
@@ -121,8 +123,6 @@ NodeValueTable RenderWorker::ProcessNodeNormally(const NodeDependency& dep)
 {
   Node* node = dep.node();
 
-  //qDebug() << "Processing" << node->id();
-
   // FIXME: Cache certain values here if we've already processed them before
 
   NodeValueDatabase database;