ensure objects are in the correct thread when loading

Since we load in a separate thread, when the QObject based objects are
instantiated, they're created with affinity to that separate thread. Now we
specifically ensure they are moved to the main thread after their creation.

app/project/project.cpp

@@ -34,8 +34,23 @@ void Project::Load(QXmlStreamReader *reader)
   XMLReadLoop(reader, "project") {
     if (reader->isStartElement()) {
       if (reader->name() == "folder") {
+
         // Assume this folder is our root
         root_.Load(reader);
+
+      } else if (reader->name() == "colormanagement") {
+
+        // Read color management info
+        XMLReadLoop(reader, "colormanagement") {
+          if (reader->name() == "config") {
+            reader->readNext();
+            set_ocio_config(reader->text().toString());
+          } else if (reader->name() == "default") {
+            reader->readNext();
+            set_default_input_colorspace(reader->text().toString());
+          }
+        }
+
       }
     }
   }
@@ -49,7 +64,13 @@ void Project::Save(QXmlStreamWriter *writer) const
 
   root_.Save(writer);
 
-  writer->writeTextElement("ocio", ocio_config_);
+  writer->writeStartElement("colormanagement");
+
+  writer->writeTextElement("config", ocio_config_);
+
+  writer->writeTextElement("default", default_input_colorspace_);
+
+  writer->writeEndElement(); // colormanagement
 
   writer->writeEndElement(); // project
 }