YITH WooCommerce Questions And Answers Premium 1.34.0

* New: support WooCommerce 3.7
* New: new link in the frontend to edit the Q&A in the backend
* New: new metabox with the last Q&A post editor data
* New: now, the Q&A author and the date are displayed in the Q&A overview on frontend
* Update: updated plugin core
* Fix: fixed a problem with the answer editor in the backend
* Dev: added a new condition to avoid a non object warning
* Dev: added an scroll up, if necessary, when access to the question
* Dev: fixing minor issues

* Update: Italian language
* Fix: gcaptcha is loaded although the option is disabled
* Dev: new filter 'ywqa_get_questions_order_by'

* New: support to WordPress 5.2
* New: support to reCaptcha v3
* Tweak: now, the notification bubble display the questions without answers
* Update: updated plugin submodules
* Remove: completely deleted the search bar