Merge branch 'develop' of https://github.com/phpbb/phpbb3 into ticket/10714

* 'develop' of https://github.com/phpbb/phpbb3: (158 commits)
  [ticket/11015] Move comment in the right place.
  [ticket/11015] Correctly transform 'mysqli' etc. in phpbb_convert_30_dbms_to_31
  [ticket/11015] Fix 3.0 to 3.1 dbms conversion for mysqli.
  [ticket/11015] Change permission adding in database updater to new style.
  [ticket/11015] Change more docblocks to phpbb_db_driver.
  [ticket/11015] Installer still needs 3.0-style dbms name.
  [ticket/11262] Add .lock in cache directory to .gitignore
  [ticket/11015] Include functions.php because it is not always included.
  [ticket/11265] Add assertions for board installation success.
  [ticket/11263] Fix PHP Notice: Undefined variable: extension_manager
  [ticket/11015] Convert database drivers to new spelling in post setup sync.
  [ticket/11015] Convert connect test to the new syntax.
  [ticket/11015] Restore whitespace to avoid conflict when merging develop.
  [ticket/10975] Add a test for viewing a profile.
  [ticket/10975] Test restricting by first character.
  [ticket/10975] Avoid rewriting global config twice.
  [ticket/10975] Test memberlist, not user creation.
  [ticket/10975] Some quick tests to check the memberlist behaviour
  [ticket/11162] Reformat.
  [ticket/10491] Make recreate_database static.
  ...

phpBB/common.php

@@ -71,7 +71,6 @@ require($phpbb_root_path . 'includes/functions_content.' . $phpEx);
 require($phpbb_root_path . 'includes/functions_container.' . $phpEx);
 
 require($phpbb_root_path . 'includes/constants.' . $phpEx);
-require($phpbb_root_path . 'includes/db/' . ltrim($dbms, 'dbal_') . '.' . $phpEx);
 require($phpbb_root_path . 'includes/utf/utf_tools.' . $phpEx);
 
 // Set PHP error handler to ours