Temporary "feature" to allow user specific MIME types

We need a feature which allows a more flexible binding
of MIME types and editors. This is definetely not the
way to handle it, but a temporary workaround.

Reviewed-by: con

src/plugins/coreplugin/mainwindow.h

@@ -177,6 +177,8 @@ private:
     void readSettings();
     void writeSettings();
 
+    void registerUserMimeTypes() const;
+
     CoreImpl *m_coreImpl;
     UniqueIDManager *m_uniqueIDManager;
     Context m_additionalContexts;