PublishPress Authors Pro 4.7.1

* Fixed: Fixed performance issue in the post list and edit page removing avatars from the authors fields, #227;
* Added: Added option to change the default author for new posts in the site, #50;
* Changed: Updated base plugin to v3.7.0;

* Fixed: Fix error "Uncaught Error: Call to a member function add_cap() on null", #223;
* Changed: Update base plugin to v3.6.3;

* Fixed: Avoid warnings regarding constants already defined;
* Fixed: Fixed the cache for the get_multiple_authors function for archive pages, #190;
* Fixed: Fixed fatal error Object of class WP_Error could not be converted to string, #182;
* Fixed: Fixed the value for $author->display_name which was returning the value from the user object instead of the custom value set for the author, #183;
* Fixed: Fixed Plugin::filter_user_has_cap() is passing a param to Util::get_current_post_type() which doesn’t support params, #187;
* Fixed: Fixed Plugin::filter_user_has_cap() to use the correct user, not the current one, #186;
* Fixed: Removed leftovers from the deprecated capability: ppma_edit_orphan_post, #193;
* Changed: Updated the base plugin to the v3.5.1;