Whole bunch of minor doc updates from an external patch.

Also documented combobox's EVT_TEXT_ENTER


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30929 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/listbox.tex

@@ -182,6 +182,8 @@ selected items as a list.}
 
 \func{void}{InsertItems}{\param{int}{ nItems}, \param{const wxString}{ *items}, \param{int}{ pos}}
 
+\func{void}{InsertItems}{\param{const wxArrayString\&}{ nItems}, \param{int}{ pos}}
+
 Insert the given number of strings before the specified position.
 
 \wxheading{Parameters}