Add a new settings page for Password Protected.
Rename privacy_settings() to password_protected_settings().
Update readme.txt and screenshots regarding the new settings page.
Point users in the direction of the "Help" tab.
Add 'password_protected_help_tabs' action for adding help tabs.
Add encrypt_password() function.
Use get_current_screen() rather than global. Requires WordPress 3.1.
Add "does not protect and images or uploaded files" to readme.txt
Add WP Engine notice to readme.txt