Move attachments bar to sidebar.

Move attachments bar to sidebar.

	* po/POTFILES.in:
	* properties/Makefile.am:
	* shell/Makefile.am:
	* shell/ev-attachment-bar.c:
	* shell/ev-attachment-bar.h:
	* shell/ev-sidebar-attachments.c:
	(ev_sidebar_attachments_icon_cache_add),
	(icon_theme_get_pixbuf_from_mime_type),
	(ev_sidebar_attachments_icon_cache_get), (icon_cache_update_icon),
	(ev_sidebar_attachments_icon_cache_refresh),
	(ev_sidebar_attachments_get_attachment_at_pos),
	(ev_sidebar_attachments_popup_menu_show),
	(ev_sidebar_attachments_popup_menu),
	(ev_sidebar_attachments_button_press),
	(ev_sidebar_attachments_update_icons),
	(ev_sidebar_attachments_drag_data_get),
	(ev_sidebar_attachments_get_property),
	(ev_sidebar_attachments_destroy),
	(ev_sidebar_attachments_class_init), (ev_sidebar_attachments_init),
	(ev_sidebar_attachments_new),
	(ev_sidebar_attachments_set_document),
	(ev_sidebar_attachments_support_document),
	(ev_sidebar_attachments_get_label),
	(ev_sidebar_attachments_page_iface_init):
	* shell/ev-sidebar-attachments.h:
	* shell/ev-window.c: (update_chrome_visibility),
	(setup_sidebar_from_metadata), (ev_window_setup_document),
	(ev_window_sidebar_current_page_changed_cb),
	(attachment_bar_menu_popup_cb), (ev_window_init):
	* thumbnailer/Makefile.am:

	Move attachments bar to sidebar.