Call clearAll() before closing OpenFlipper to make sure all object's destructors are called.

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@9164 383ad7c9-94d9-4d36-a494-682f7c89f535

Core/Core.cc

@@ -983,6 +983,10 @@ Core::writeOnExit() {
 void Core::slotExit() {
   writeOnExit();
   
+  // Call clearAll() before closing application
+  // in order to call all object's destructors...
+  clearAll();
+  
   if (logFile_)
     logFile_->close();