indexpage 5.x-1.4

#264777 Use theme_username.
#270402 Title was duplicated when no other fields selected.
#269871 Corrected access for add operation.
#300617 Order terms by weight, name.
#300934 Several improvements.
#284677 Added content type page description, all authors option.
#306096 Limit access to unpublished nodes.
Correct breadcrumbs on result page.
Allow centering of several result columns.