various fixes

app/node/input.cpp

@@ -38,6 +38,11 @@ NodeParam::Type NodeInput::type()
 void NodeInput::add_data_input(const NodeParam::DataType &data_type)
 {
   inputs_.append(data_type);
+
+  // If no name has been set, use a default name
+  if (name().isEmpty()) {
+    set_name(GetDefaultDataTypeName(data_type));
+  }
 }
 
 bool NodeInput::can_accept_type(const NodeParam::DataType &data_type)

app/node/output.cpp

@@ -41,6 +41,11 @@ const NodeParam::DataType &NodeOutput::data_type()
 void NodeOutput::set_data_type(const NodeParam::DataType &type)
 {
   data_type_ = type;
+
+  // If no name has been set, use a default name
+  if (name().isEmpty()) {
+    set_name(GetDefaultDataTypeName(type));
+  }
 }
 
 const QVariant &NodeOutput::get_value(const rational& time)

app/node/param.cpp

@@ -27,7 +27,6 @@
 NodeParam::NodeParam(Node *parent) :
   QObject(parent)
 {
-  name_ = "Banjo";
 }
 
 const QString &NodeParam::name()