Merge branch 'develop' of https://github.com/phpbb/phpbb3 into ticket/10411-2

* 'develop' of https://github.com/phpbb/phpbb3: (204 commits)
  [ticket/11219] Coding guidelines and naming consistency changes
  [ticket/10841] Revert more whitespace changes.
  [ticket/10841] Revert whitespace changes.
  [ticket/10841] adding space after if
  [ticket/10841] removing unnecessary spacing
  [ticket/10841] changing affectedrows check to COUNT in sql
  [ticket/10841] Modifying style and language selectors in UCP
  [ticket/11247] Fix wrong property reference in flock class.
  [ticket/10602] Avoid a race condition.
  [ticket/10602] Use last_queue_run for its intended purpose.
  [ticket/10716] Collect standard error from executed php process.
  [ticket/10716] Skip test if php is not in PATH.
  [ticket/10716] Exclude our dependencies from linting.
  [ticket/10103] New and improved wording.
  [ticket/10716] Only lint on php 5.3+.
  [ticket/10103] Assert with messages.
  [ticket/10103] assertLessThan/assertGreaterThan.
  [ticket/10103] Inline assignment is bad?
  [ticket/10103] $rv had too few characters.
  [ticket/10103] Correct flock class documentation.
  ...

Conflicts:
	phpBB/config/services.yml
	phpBB/includes/groupposition/legend.php

phpBB/develop/generate_utf_casefold.php

@@ -111,7 +111,7 @@ function my_var_export($var)
 * Download a file to the develop/ dir
 *
 * @param	string	$url		URL of the file to download
-* @return	void
+* @return	null
 */
 function download($url)
 {

phpBB/develop/generate_utf_confusables.php

@@ -199,7 +199,7 @@ function my_var_export($var)
 * Download a file to the develop/ dir
 *
 * @param	string	$url		URL of the file to download
-* @return	void
+* @return	null
 */
 function download($url)
 {

phpBB/develop/generate_utf_tables.php

@@ -481,7 +481,7 @@ function my_var_export($var)
 * Download a file to the develop/ dir
 *
 * @param	string	$url		URL of the file to download
-* @return	void
+* @return	null
 */
 function download($url)
 {

phpBB/develop/utf_normalizer_test.php

@@ -222,7 +222,7 @@ die("\n\nALL TESTS PASSED SUCCESSFULLY\n");
 * Download a file to the develop/ dir
 *
 * @param	string	$url		URL of the file to download
-* @return	void
+* @return	null
 */
 function download($url)
 {