Additional tie-ins:
* Pagespecs that can select pages with a field with a given value, etc.
+ This should use a pagespec function like field(fieldname, value). The
+ semantics of this will depend on the type of the field; text fields will
+ match value against the text, and link fields will check for a link
+ matching the pagespec value.
* The search plugin could allow searching for specific fields with specific
content. (xapian term search is a good fit).