populate from/reply_to for signup confirmation

- added loading screen to reinstall process

lib/Config/Populator.php

@@ -82,28 +82,24 @@ class Populator {
   private function createDefaultSettings() {
     $current_user = wp_get_current_user();
 
-    // user name
-    $user_name = '';
-    if($current_user->user_firstname) {
-      $user_name = $current_user->user_firstname;
-    }
-    if($current_user->user_lastname) {
-      if($user_name) {
-        $user_name .= ' '.$current_user->user_lastname;
-      }
-    }
-    if(!$user_name) {
-      $user_name = $current_user->display_name;
-    }
+    // default sender info based on current user
+    $sender = array(
+      'name' => $current_user->display_name,
+      'address' => $current_user->user_email
+    );
 
     // default from name & address
-    Setting::setValue('sender', array(
-      'name' => $user_name,
-      'address' => $current_user->user_email
-    ));
+    Setting::setValue('sender', $sender);
 
     // enable signup confirmation by default
-    Setting::setValue('signup_confirmation.enabled', true);
+    Setting::setValue('signup_confirmation', array(
+      'enabled' => true,
+      'from' => array(
+        'name' => get_option('blogname'),
+        'address' => get_option('admin_email')
+      ),
+      'reply_to' => $sender
+    ));
   }
 
   private function createDefaultSegments() {

lib/Models/Setting.php

@@ -41,7 +41,7 @@ class Setting extends Model {
       'signup_confirmation' => array(
         'enabled' => true,
         'subject' => sprintf(__('Confirm your subscription to %1$s'), get_option('blogname')),
-        'body' => __("Hello!\n\nHurray! You've subscribed to our site.\nWe need you to activate your subscription to the list(s): [lists_to_confirm] by clicking the link below: \n\n[activation_link]Click here to confirm your subscription.[/activation_link]\n\nThank you,\n\nThe team!")
+        'body' => __("Hello!\n\nHurray! You've subscribed to our site.\n\nWe need you to activate your subscription to the list(s): [lists_to_confirm] by clicking the link below: \n\n[activation_link]Click here to confirm your subscription.[/activation_link]\n\nThank you,\n\nThe team!")
       )
     );
   }

views/settings/advanced.html

@@ -190,6 +190,7 @@
         if(confirm(
           "<%= __('If you confirm this, all your current MailPoet data will be erased (newsletters, statistics, subscribers, etc...)') %>"
         )) {
+          MailPoet.Modal.loading(true);
           MailPoet.Ajax.post({
             'endpoint': 'setup',
             'action': 'reset'