Rename Set Featured Image in Wordpress

Posts in Wordpress can have their own featured image when enabled.
Now, here's a way to modify both the 'Featured Image' title and the 'Set Featured Image' link text.

Just add the follwing code to your theme's functions.php

function customizeFeaturedImageLinkTitle( $content ) {
  return $content = str_replace( __('Set featured image'), __('Set DefaultMessage image'), $content);
}

function customizeFeaturedImageTitle($translated) {
  return str_ireplace('Featured Image', 'DefaultMessage Image', $translated);
}

add_filter('gettext','catalogph_customizeFeaturedImageTitle');
add_filter('ngettext','catalogph_customizeFeaturedImageTitle');

Redirect to Login Page in Wordpress

Using PHP, you can use the following code to redirect a user to the log-in page before being able to access a page. It will go to the page the user is trying to access once he is logged-in.

<?php auth_redirect() ?>

Some say it doesn't work right for logged-in users.
Better add a checking just to make sure it works all the time:

<?php
  if ( !is_user_logged_in() ) {
    auth_redirect();
  }
?>