Place even pages to the left if document has less then two pages. Fix for

Place even pages to the left if document has less then two pages. Fix for

	* shell/ev-page-cache.c: (build_height_to_page),
	(ev_page_cache_new), (ev_page_cache_get_max_label_chars),
	(ev_page_cache_get_dual_even_left):
	* shell/ev-page-cache.h:
	* shell/ev-view.c: (view_update_range_and_current_page),
	(get_page_y_offset), (get_page_extents):

	Place even pages to the left if document has less then
	two pages. Fix for the bug #328856.