Add function to clear connectionModel data

Preparation primarily for mobile. When we want to switch in
one session from BT to cable connection and vise versa, we
need a way to clear the model data containing the possible
connections in use.

Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>

core/connectionlistmodel.cpp

@@ -42,3 +42,10 @@ void ConnectionListModel::addAddress(const QString address)
 	m_addresses.append(address);
 	endInsertRows();
 }
+
+void ConnectionListModel::removeAllAddresses()
+{
+	beginRemoveRows(QModelIndex(), 0, rowCount());
+	m_addresses.clear();
+	endRemoveRows();
+}