* ADD: allow to preset field values on per field basis;
* ADD: allow to open map marker popup by hover on the listing item;
* ADD: indication of active conditional rules for JetEngine forms;
* ADD: rollback to the previous version functionality;
* FIX: maps listing and JetSmartFilters compatibility;
* FIX: error validation form if the hidden specific fields (date, time, email);
* FIX: process PayPal gateway with AJAX forms;
* FIX: prevent attach media file with zero id;
* FIX: `update_user` notification if empty form fields.
