Wijax widgets

### Purpose
Improve page load performance by delaying facet queries (and Scriblio Authority lookups on them) until requested via wijax.

### Standards improvements:
- whitespace cleanup
- remove `extract()` per https://github.com/GigaOM/legacy-pro/issues/2267

Review with [`?w=1`](https://github.com/misterbisson/scriblio/pull/37/files?w=1) for better health.