fixing wish #6335:

Give feedback that kmail is busy with an operation (e.g., show an
hourglass)

svn path=/trunk/kdenetwork/kmail/; revision=89657

kmreaderwin.cpp

@@ -585,8 +585,10 @@ void KMReaderWin::parseMsg(void)
   if (!parent())
     setCaption(mMsg->subject());
 
+  kernel->kbp()->busy();
   parseMsg(mMsg);
-
+  kernel->kbp()->idle();
+   
   mViewer->write("</body></html>");
   mViewer->end();
 }