rename options to _options for consistency
rename options to _options for consistency

localytics/jsonapi-resources,jsmestad/jsonapi-resources,harisadam/jsonapi-resources,senid231/jsonapi-resources,AKHarris/jsonapi-resources,cerebris/jsonapi-resources,kevintraver/jsonapi-resources,Skeduna/jsonapi-resources,togglepro/jsonapi-resources