Javascript lib: UX: When whiteOutReportSuccess() is called on a whiteout over a miniPrompt, the miniPrompt and whiteout are now flown out together. Also, a bit of improvement to message box DOM object destruction code; this fixes problems with message boxes appearing below the shade when ajax auth is done 3 or more times in one page load.

/*
 * 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.
//