The ...target.wt property contains the wikitext used to generate
the template name. It can contain trailing newlines (T234817) and
all kinds of funny wikitext syntax. Instead, use ...target.href,
which is the title of the page that is actually transcluded. Compare
the new code to ve.dm.MWTransclusionNode.prototype.getPartsList.
Additionally, fix some confusion about namespaces (treating template
names as titles in the main namespace). The template names in the
configuration page (visualeditor-template-tools-definition.json)
now support overriding namespaces in the same way as in wikitext.
Bug: T234817
Change-Id: I7c557d28e961d0b9117fc0380c65cdd42035ae96
Context items can be created for specific template titles. Titles
are mapped to context items using an on-wiki message.
Bug: T211243
Change-Id: Icfc39e350452da238d0e0c17cb2305c60d9ca16a
