Fixed Segfault caused by uninitialized ModelTester pointers in Release mode (Fixes issue 5)

client/portgrouplist.cpp

@@ -29,8 +29,11 @@ PortGroupList::PortGroupList()
 {
     PortGroup    *pg;
 
-#ifndef QT_NO_DEBUG
-    // TODO(LOW): Remove
+#ifdef QT_NO_DEBUG
+    streamModelTester_ = NULL;
+    portModelTester_ = NULL;
+    portStatsModelTester_ = NULL;
+#else
     streamModelTester_ = new ModelTest(getStreamModel());
     portModelTester_ = new ModelTest(getPortModel());
     portStatsModelTester_ = new ModelTest(getPortStatsModel());

client/streamconfigdialog.cpp

@@ -136,7 +136,9 @@ StreamConfigDialog::StreamConfigDialog(Port &port, uint streamIndex,
     LoadCurrentStream();
     mpPacketModel = new PacketModel(this);
     tvPacketTree->setModel(mpPacketModel);
-#ifndef QT_NO_DEBUG
+#ifdef QT_NO_DEBUG
+    mpPacketModelTester = NULL;
+#else
     mpPacketModelTester = new ModelTest(mpPacketModel);
 #endif
     tvPacketTree->header()->hide();