…to be done in its own file however, since Firefox refuses to notify global errors in the iframe (attachEvent, window.onerror and script.onerror all fail).
…has been simplified in _Deferred.resolve and jQuery.when has been refactored for clarity (and minor optimization).
… future and to avoid a separate prefilters directory).
…atechange support). Streamlined the implementation and put it back into ajax.js (removed xhr.js in the process). Went back to a more simple & direct approach to options handling (keeping much room to further minification-related optimizations). Code is cleaner, smaller & faster. Removed & edited unit tests accordingly. All build files have had xhr.js removed.