Hide some diff editor controls when diff editor is bound to a file.

Remove unnecessary anymore "ignoreWhitespace" argument
from functions which read a patch file.

Transfer the ownership of reloader into controller.

Task-number: QTCREATORBUG-13250
Change-Id: I68183005b845d6ece9ea2be9888abc8597310426
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

src/plugins/diffeditor/diffeditorreloader.h

@@ -43,7 +43,7 @@ class DIFFEDITOR_EXPORT DiffEditorReloader : public QObject
 {
     Q_OBJECT
 public:
-    DiffEditorReloader(QObject *parent = 0);
+    DiffEditorReloader();
     ~DiffEditorReloader();
 
     bool isReloading() const;