Merge remote-tracking branch 'phpbb/develop' into feature/softdelete-1-permission

* phpbb/develop: (704 commits)
  [ticket/11630] Improvements to the PHP lint pre-commit hook
  [feature/auth-refactor] Move auth providers to separate directory
  [ticket/11619] Use HTTP/1.0 because of lack of chunked-encoding handling.
  [ticket/11619] Some tests for get_remote_file().
  [ticket/11617] Remove spaces and tabs from empty lines
  [ticket/11617] Missing U_ACTION in acp_captcha.php
  [feature/auth-refactor] Fix code style issue
  [feature/auth-refactor] Fix comment grammar
  [feature/auth-refactor] Fix the actual cause of test failures
  [ticket/10838] Fix URL for wiki and remove irrelevant line
  [ticket/10838] Remove php 5.4 and builtin server references
  [ticket/10838] Fix missing data
  [ticket/10838] separate database used mentioned in unit tests
  [ticket/11585] Make $auth_admin class property
  [feature/auth-refactor] A possible fix for the functional test failures
  [ticket/11566] Subsilver template error displayed after table headers
  [ticket/11566] Remove extra pair of brackets from conditional statement
  [ticket/11566] Check that guest doesn't have reporting permission by default
  [ticket/11566] Add captcha to report post template in subsilver
  [ticket/11566] Use the new constant CONFIRM_REPORT for captcha init
  ...

Conflicts:
	phpBB/docs/sphinx.sample.conf
	phpBB/feed.php
	phpBB/styles/prosilver/template/search_results.html
	phpBB/styles/prosilver/template/viewforum_body.html

phpBB/includes/constants.php

@@ -160,6 +160,7 @@ define('PHYSICAL_LINK', 2);
 define('CONFIRM_REG', 1);
 define('CONFIRM_LOGIN', 2);
 define('CONFIRM_POST', 3);
+define('CONFIRM_REPORT', 4);
 
 // Categories - Attachments
 define('ATTACHMENT_CATEGORY_NONE', 0);