Update core 8.3.0

web/sites/default/default.settings.php

@@ -144,6 +144,11 @@
  * @code
  *   'prefix' => 'main_',
  * @endcode
+ *
+ * Per-table prefixes are deprecated as of Drupal 8.2, and will be removed in
+ * Drupal 9.0. After that, only a single prefix for all tables will be
+ * supported.
+ *
  * To provide prefixes for specific tables, set 'prefix' as an array.
  * The array's keys are the table names and the values are the prefixes.
  * The 'default' element is mandatory and holds the prefix for any tables
@@ -265,6 +270,11 @@ $config_directories = array();
  * by the user.
  *
  * @see install_select_profile()
+ *
+ * @deprecated in Drupal 8.3.0 and will be removed before Drupal 9.0.0. The
+ *   install profile is written to the core.extension configuration. If a
+ *   service requires the install profile use the 'install_profile' container
+ *   parameter. Functional code can use \Drupal::installProfile().
  */
 # $settings['install_profile'] = '';
 
@@ -739,19 +749,6 @@ $settings['file_scan_ignore_directories'] = [
   'bower_components',
 ];
 
-/**
- * Include the Pantheon-specific settings file.
- *
- * n.b. The settings.pantheon.php file makes some changes
- *      that affect all envrionments that this site
- *      exists in.  Always include this file, even in
- *      a local development environment, to insure that
- *      the site settings remain consistent.
- */
-if (file_exists(__DIR__ . '/settings.pantheon.php')) {
-  include __DIR__ . "/settings.pantheon.php";
-}
-
 /**
  * Load local development override configuration, if available.
  *