Add/change forward declaration for picky compilers.

svn path=/trunk/kdenetwork/kmail/; revision=198535

kmaccount.h

@@ -20,6 +20,7 @@ class KMFolder;
 class KMAcctFolder;
 class KConfig;
 class KMMessage;
+class KMFolderJob;
 
 
 class KMPrecommand : public QObject

kmcommands.h

@@ -9,7 +9,6 @@
 
 class QPopupMenu;
 class QTextCodec;
-class KIO::Job;
 class KMainWindow;
 class KProgressDialog;
 class KMComposeWin;
@@ -21,6 +20,8 @@ class KMMainWidget;
 class KMMessage;
 class KMMsgBase;
 class KMReaderWin;
+namespace KIO { class Job; }
+
 typedef QMap<int,KMFolder*> KMMenuToFolder;
 
 class KMCommand : public QObject

kmfoldermbox.h

@@ -11,6 +11,8 @@
 
 #define KMFolderMboxInherited KMFolderIndex
 
+class KMFolderMbox;
+
 class KMMboxJob : public KMFolderJob
 {
   Q_OBJECT