Clean up headers && fix compilation with (the upcoming) qt 4.8.2

Conflicts:

	src/adblock/adblockwidget.h
	src/application.h
	src/history/historymanager.h
	src/tabpreviewpopup.cpp

Backported from master branch

1 files changed, 4 insertions, 10 deletions

diff --git a/src/application.h b/src/application.h
index 2689e3f5..bc1ddc72 100644
--- a/src/application.h
+++ b/src/application.h
@@ -40,11 +40,12 @@
 #include <KUniqueApplication>
 
 // Qt Includes
-#include <QtCore/QDateTime>
-#include <QtCore/QWeakPointer>
-
+#include <QWeakPointer>
 
 // Forward Declarations
+class KAction;
+
+
 class AdBlockManager;
 class BookmarkManager;
 class DownloadManager;
@@ -56,13 +57,6 @@ class SessionManager;
 class UserAgentManager;
 class SyncManager;
 
-class KAction;
-
-namespace ThreadWeaver
-{
-class Job;
-}
-
 
 typedef QList< QWeakPointer<MainWindow> > MainWindowList;