remove gtk- prefix from TreeView and a few other entities, more consistent

remove gtk- prefix from TreeView and a few other entities, more consistent

2002-01-06  Havoc Pennington  <hp@pobox.com>

	* gtk/gtk-docs.sgml: remove gtk- prefix from TreeView and a few
	other entities, more consistent anyway (I thought this would make
	links to "GtkTreeView" etc. go to the ref page, not the struct,
	but it wasn't the problem, the issue is the way gtkdoc-mkdb
	decides what's an object, see CheckIsObject() routine)

	* gtk/changes-1.2.sgml: sgml fixes to get rid of warnings

	* gtk/changes-2.0.sgml: ditto

	* gtk/question_index.sgml: add some questions