Make test showing issue #73: capitalisation
Disable analyzing custom fields

The keyword analyzer practically means not doing analysis.
Update analyzer settings in mapping
Docstring for _Model
Merge pull request #87 from Treora/revise_search_raw

Revise search_raw
Merge pull request #88 from Treora/change_analyzer

Change analyzer
Remove orphaned method
Fix RuntimeError on failing authz filter
Have search call search_raw
Have count call search