Issue #1139918 by entrigan: Work around brokenness with node edit form context by not treating it as a pure node.

Issue #1161144 by dolar4ik: Fix notices on page manager node edit forms regarding missing node titles.

Updates to taxonomy actually broke a bunch of features of term_view. This fixes some of them, but not all.

Issue #1094014: Allow export $item->type to be something else to reduce namespace collisions on exportable objects.

Cleanup of entity stuff, a start at reverse relationships on entity fields but it needs to be finished.