Remove unused Elasticsearch parameters 'key_prefix' and 'request_timeout'.
Refactor so that get_elasticsearch_params only returns parameters used
by Search::Elasticsearch, add class accessor for index_name.
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>