Git: Provide a commit editor for files opened externally

Change-Id: I52fccf36cca032dda36102d4be2654eb7461de64
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

src/plugins/vcsbase/vcsbaseeditor.h

@@ -105,7 +105,7 @@ protected:
     void setLogEntryPattern(const QRegExp &pattern);
 
 public:
-    void init();
+    virtual void init();
 
     ~VcsBaseEditorWidget();