[DATABASE] Re-order tables to be created

Foreign keys need to be created after the respective tables are already in
place. This order makes sure this is the case.

db/core.php

@@ -1,4 +1,18 @@
 <?php
+// This file is part of GNU social - https://www.gnu.org/software/social
+//
+// GNU social is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// GNU social is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with GNU social.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
  *
@@ -25,24 +39,29 @@
  *     double-check what we've been doing on postgres?
  */
 
-$classes = array('Schema_version',
+defined('GNUSOCIAL') || die();
+
+$classes = [
+    'Schema_version',
     'Profile',
     'Avatar',
     'Sms_carrier',
     'User',
+    'User_group',
     'Subscription',
     'Group_join_queue',
     'Subscription_queue',
+    'Consumer',
+    'Oauth_application',
     'Oauth_token_association',
+    'Conversation',
     'Notice',
     'Notice_location',
     'Notice_source',
     'Notice_prefs',
     'Reply',
-                 'Consumer',
     'Token',
     'Nonce',
-                 'Oauth_application',
     'Oauth_application_user',
     'Confirm_address',
     'Remember_me',
@@ -54,11 +73,10 @@ $classes = array('Schema_version',
     'Foreign_subscription',
     'Invitation',
     'Profile_prefs',
-                 'Profile_tag',
     'Profile_list',
+    'Profile_tag',
     'Profile_tag_subscription',
     'Profile_block',
-                 'User_group',
     'Related_group',
     'Group_inbox',
     'Group_member',
@@ -75,14 +93,13 @@ $classes = array('Schema_version',
     'Login_token',
     'User_location_prefs',
     'User_im_prefs',
-                 'Conversation',
     'Local_group',
     'User_urlshortener_prefs',
     'Old_school_prefs',
     'User_username',
-                 'Attention',
-);
+    'Attention'
+];
 
 foreach ($classes as $cls) {
-    $schema[strtolower($cls)] = call_user_func(array($cls, 'schemaDef'));
+    $schema[strtolower($cls)] = call_user_func([$cls, 'schemaDef']);
 }