PageProcessor: fix not setting page_exists to true after create_page() success (todo: move to Namespace_*?); add $visible parameter to create_page()
/*
* Auto-completing page/username fields
* NOTE: A more efficient version of the username field is used for Mozilla browsers. The updated code is in autofill.js.
*/
//
// **** 1.1.5: DEPRECATED ****
// Replaced with jQuery-based mechanism.
//