Default munge_search_term method still used for AJAX search

[ewohnlich]

I see that the @@search view (CMFPlone.browser.search.Search) is updated for the IElasticSearchLayer by having the munge_search_term method just return the original query. But @@ajax-search ((CMFPlone.browser.search.AjaxSearch) subclasses CMFPlone.browser.search.Search not collective.elasticsearch.browser.search.Search, so it's still munging in a way that doesn't get expected behavior from elasticsearch.

I'm not sure what the best approach is but I think you need to either 1) monkey patch it instead (I think that works?) or 2) also update the view for @@ajax-search