Consistent is misspelled twice

pie@area phpbb % g consistant

	<p>Some of these functions are only chosen over others because of personal preference and having no other benefit than to be consistant over the code.</p>

./phpBB/docs/coding-guidelines.html

				// If we can't insert this user then continue to the next one to avoid inconsistant data

./phpBB/install/install_install.php