* Marc/ticket/11997: (23 commits) [ticket/11997] Use functional test cases that should always work [ticket/11997] Fix redirect tests for mod rewrite [ticket/11997] Add user's page dir to redirect path and fix unit tests for it [ticket/11997] Remove obsolete function get_controller_redirect_url() [ticket/11997] Use path_helper in in foo/bar extension for redirect URLs [ticket/11997] Add remove_web_root_path() in order to prevent incorrect URLs [ticket/11997] Do not check if file or dir we redirect to exist [ticket/11997] Modifiy tests after adding path_helper clean_url method [ticket/11997] Add clean_url() method to path_helper [ticket/11997] Allow redirects to parent folders like previously [ticket/11997] Move expected redirect returns to controller and output to HTML [ticket/11997] Fix tests for path_helper's get_controller_redirect_url() [ticket/11997] Use get_controller_redirect_url() in redirect() function [ticket/11997] Add method for controller redirect URLs to path helper [ticket/11997] Undo changes to phpbb_own_realpath() [ticket/11997] Remove obsolete failover_flag in function redirect() [ticket/11997] Add functional test for redirects in controller [ticket/11997] Fix missing global [ticket/11997] Fix redirects from inside controllers [ticket/11997] Use $phpbb_filesystem->clean_path() for proper redirect paths ...