This commit migrates db to include "producer" column in factsets
table, creates new fact wireformat to include this field (v5),
and adds it as a queryable field.

- s/either -> s/cond-pre or s/enum

- s/both -> s/constrained

This commit removes the seq schema validation for the `query->wire`
functions we use for streaming PuppetDB data to the export data so that
our export queries are indeed streaming and don't hold all the PuppetDB
reports in memory.

* Remove concept of expand as a paging parameter
* Use maptrans and collapse some more munge funcs
* More schema validation work
* Fix where matching clause ambiguity
* Get export/import working
* Ensure url-prefix is used in expanded href/data blocks
* Restrict edges query to active nodes
* Fix hash_debug to use the new format
* Convert remaining expressions to use honeysql
* Many test fixes
* Return iso8601 timestamps with row_to_json for PG 9.3
* Remove reports/<hash>/events projection restriction
* catalogs are only returned for active nodes to match the rest of the endpoints
* Upgrade to latest honeysql and use cast formatting
Signed-off-by: Ken Barber <ken@bob.sh>