fix some compilation issues on various platforms

app/node/node.cpp

@@ -1809,7 +1809,7 @@ void Node::LoadImmediate(QXmlStreamReader *reader, const QString& input, int ele
             if (reader->name() == QStringLiteral("key")) {
               QString key_input;
               rational key_time;
-              NodeKeyframe::Type key_type;
+              NodeKeyframe::Type key_type = NodeKeyframe::kLinear;
               QVariant key_value;
               QPointF key_in_handle;
               QPointF key_out_handle;

app/node/node.h

@@ -1183,17 +1183,15 @@ T* Node::ValueToPtr(const QVariant &ptr)
 template<class T>
 void Node::FindOutputNodeInternal(const Node* n, QVector<T *>& list)
 {
-  foreach (const std::vector<NodeInput>& outputs, n->output_connections_) {
-    foreach (const NodeInput& output, outputs) {
-      Node* connected = output.node();
-      T* cast_test = dynamic_cast<T*>(connected);
+  foreach (const OutputConnection& output, n->output_connections_) {
+    Node* connected = output.second.node();
+    T* cast_test = dynamic_cast<T*>(connected);
 
-      if (cast_test) {
-        list.append(cast_test);
-      }
-
-      FindOutputNodeInternal<T>(connected);
+    if (cast_test) {
+      list.append(cast_test);
     }
+
+    FindOutputNodeInternal<T>(connected);
   }
 }
 

app/render/colormanager.cpp

@@ -281,7 +281,7 @@ void ColorManager::InputValueChangedEvent(const QString &input, int element)
 
     try {
       SetConfig(OCIO::Config::CreateFromFile(GetConfigFilename().toUtf8()));
-    } catch (OCIO::Exception& e) {}
+    } catch (OCIO::Exception&) {}
 
   }
 }