Merge branch '6.3' into 6.4

* 6.3:
  [AssetMapper] Fixing import parsing from jsdelivr
  Fix htaccess sample to use index.php instead of app.php
  [SecurityBundle] Add `firewalls.logout.csrf_token_manager` to XSD
  [Form] Fix form events phpdocs
  fix(mailgun-smtp): disable tls for mailgun as it should use starttls instead

Author: derrabus

Event/PostSetDataEvent.php

@@ -17,7 +17,8 @@
 /**
  * This event is dispatched at the end of the Form::setData() method.
  *
- * This event is mostly here for reading data after having pre-populated the form.
+ * It can be used to modify a form depending on the populated data (adding or
+ * removing fields dynamically).
  */
 final class PostSetDataEvent extends FormEvent
 {

Event/PreSetDataEvent.php

@@ -16,9 +16,7 @@
 /**
  * This event is dispatched at the beginning of the Form::setData() method.
  *
- * It can be used to:
- *  - Modify the data given during pre-population;
- *  - Modify a form depending on the pre-populated data (adding or removing fields dynamically).
+ * It can be used to modify the data given during pre-population.
  */
 final class PreSetDataEvent extends FormEvent
 {