Documented wxListItemAttr.

Clarified that item data is asociated with a wxListCtrl
item and not with subitems.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34760 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/classes.tex

@@ -200,6 +200,7 @@
 \input listctrl.tex
 \input listevt.tex
 \input listitem.tex
+\input listattr.tex
 \input listview.tex
 \input locale.tex
 \input log.tex