This allows pages like create.php to not include inc/mod/pages.php while still being able to use the mod auth functions (like generating salts and passwords)

Taking into account barrucadu's comments.

Works around the fact that individual board configs are not loaded when posting by making locked boards a global setting that takes an array of boards

Obviously the proper fix is to correctly load the board configs but I can't be arsed.

same for post deletion

This reverts commit db3c7f4ee9.

Compatible with earlier versions of PHP. This should work on 5.4 too, but I haven't tested it.

Conflicts:
	post.php

maintained. this is an old cruft and if needed, it needs rewriting.

Conflicts:
	inc/config.php
	templates/post_form.html