Minor header bug change; Contact Page

Removed "pure-g" from header, which sometimes prevented headings from
being centered.
Populated contact.php and created contact.css.
Deleted reflex.js.
Revert "Minor header bug change; Contact Page"

This reverts commit 00149f30ff24d4694839b95edbb2f05ab63e2224.
Revert "Revert "Minor header bug change; Contact Page""

This reverts commit ee1542cd81eb54d775ffa28c98480f2006c5c529.