The approach using Solr's own BBoxField turned out to be not optimal as
it required the use of LocalParams. This is fine if the query is used in
`fq` but CKAN core does not allow it on `q` (unreasonably IMO). Long
story short the old implementation is a bit more verbose but supports:
* Proper spatial sorting
* Combining queries in `q` with a spatial filter
* Antimeridian queries handling
It doesn't support Point geometries, but users can use
`solr-spatial-field` if they need them
When creating a minimal custom theme users may start with a blank read.html file and include only the secondary_content block. This will fail, as the template needs to start with ckan_extends.
Completely revised and restructured docs to be built with Sphinx.
Structured in logic areas, with a big cleanup and nice formatting.
Revised install instructions.
Added the okfn-sphinx-theme submodule to have a consistent look and feel
with the core CKAN docs, although core docs are using an older revision.