[ticket/12693] Add a travis test that checks file permissions

PHPBB3-12693
[ticket/12693] Fix indentation

PHPBB3-12693
[ticket/12693] Check if the files have the right 644

And not only if they are executable.

PHPBB3-12693
[ticket/12693] Fix the permissions

PHPBB3-12693
[ticket/12693] Check if the are executable and not if they are 644

PHPBB3-12693
[ticket/12693] Check the persmissions of the owner

PHPBB3-12693
[ticket/12693] Remove the executable bit on icon_print.gif

PHPBB3-12693
[ticket/12693] Extract exceptions, bin/* must be executable

PHPBB3-12693
[ticket/12693] Fix the query for bin/*

PHPBB3-12693
[ticket/12693] Expand manually the wildcard

PHPBB3-12693
[ticket/12693] All the files in bin/ must be executable

PHPBB3-12693
[ticket/12693] Force the composer.phar to be executable

PHPBB3-12693
[ticket/12693] The files skipped list can not be empty

PHPBB3-12693
[ticket/12693] Fix composer.phar path

PHPBB3-12693
[ticket/12718] Use remove_topic_from_statistic() for delete_topic

PHPBB3-12718
[ticket/12718] Update docblock

PHPBB3-12718
[ticket/12718] Add tests to check user_posts on post deletion

PHPBB3-12718
[ticket/12710] Prepare get_existing_indexes() for other DBMS

PHPBB3-12710
[ticket/12710] Fix changing the column type on oracle

PHPBB3-12710
[ticket/12718] Fix docblocks

PHPBB3-12718