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.cpp

@@ -33,9 +33,8 @@
 
 namespace DiffEditor {
 
-DiffEditorReloader::DiffEditorReloader(QObject *parent)
-    : QObject(parent),
-      m_controller(0),
+DiffEditorReloader::DiffEditorReloader()
+    : m_controller(0),
       m_reloading(false)
 {
 }