Virtual destructor for QAMQP::Frame::Base

To solve the GCC warning:
deleting object of polymorphic class type ‘QAMQP::Frame::Method’ which has non-virtual destructor might cause undefined behaviour [-Wdelete-non-virtual-dtor]

src/qamqp/amqp_frame.cpp

@@ -19,6 +19,9 @@ Type Base::type() const
 	return Type(type_);
 }
 
+Base::~Base()
+{}
+
 void Base::setChannel( qint16 channel )
 {
 	channel_ = channel;
@@ -343,7 +346,7 @@ void QAMQP::Frame::writeField( qint8 valueType, QDataStream &s, const QVariant &
 {
 	QByteArray tmp;
 	if(withType)
-		s << valueType; // Запишем тип поля
+		s << valueType;
 
 	switch(valueType)
 	{

src/qamqp/amqp_frame.h

@@ -109,6 +109,11 @@ namespace QAMQP
 			*/
 			Base(QDataStream& raw);
 
+			/*!
+			Base class virtual destructor
+			*/
+			virtual ~Base();
+
 			/*!
 			Frame type
 			@detailed Return type of current frame.