Do not use deprecated Qt functionality.

Replace all* remaining deprecated Qt 4 functions with
their Qt 5 counterparts. This means we no longer need to
define the QT_DISABLE_DEPRECATED_BEFORE macro.
This patch is relatively small because most source-compatible
changes of this kind have been done before.

* The one exception is the QmlDesigner, which uses QWeakPointer
in a deprecated way all over the place.

Change-Id: Id4b839c6685f3b5bdf2b89137f95231758ec53c7
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/fakevim/fakevimplugin.cpp

@@ -97,10 +97,10 @@
 #include <QStackedWidget>
 #include <QTextStream>
 
-#include <QDesktopServices>
 #include <QItemDelegate>
 #include <QPlainTextEdit>
 #include <QShortcut>
+#include <QStandardPaths>
 #include <QTextBlock>
 #include <QTextCursor>
 #include <QTextEdit>
@@ -1379,7 +1379,7 @@ void FakeVimPluginPrivate::maybeReadVimRc()
         return;
     QString fileName = theFakeVimSetting(ConfigVimRcPath)->value().toString();
     if (fileName.isEmpty()) {
-        fileName = QDesktopServices::storageLocation(QDesktopServices::HomeLocation)
+        fileName = QStandardPaths::writableLocation(QStandardPaths::HomeLocation)
             + (Utils::HostOsInfo::isWindowsHost() ? _("/_vimrc") : _("/.vimrc"));
     }
     //qDebug() << "READING VIMRC: " << fileName;