Initial alteration of namebox for clicky stuffs

Should allow left clicking of certain name textboxes to bring up profiles
Removes old dead variables
Cleans up includes

indra/llui/lltextbox.h

@@ -139,6 +139,7 @@ private:
 	LLFontGL::VAlign mVAlign;
 
 	std::vector<S32> mLineLengthList;
+protected:
 	callback_t			mClickedCallback;
 };