Do not crash opening documents with no pages and show a warning message in

Do not crash opening documents with no pages and show a warning message in

2008-06-16  Carlos Garcia Campos  <carlosgc@gnome.org>

	* backend/pdf/ev-poppler.cc: (pdf_document_get_info):
	* shell/ev-sidebar-thumbnails.c:
	(ev_sidebar_thumbnails_set_loading_icon),
	(ev_sidebar_thumbnails_refresh):
	* shell/ev-window.c: (ev_window_error_message),
	(ev_window_warning_message), (ev_window_refresh_window_thumbnail),
	(ev_window_set_document):

	Do not crash opening documents with no pages and show a warning
	message in the message area. Fixes bugs #537574 and #171588.

svn path=/trunk/; revision=3052