Accept RFC822 timestamp

[jzaefferer]

From a comment of the plugin page:

Great stuff! The only thing that bugs me is the way it parses the date from “yyyy/mm/dd hh:nn:ss” format (same thing with John Resig’s code). Well – the ECMAScript/JavaScript documentation does not specify a string date format for parse(). MSDN/IE documentation says that the above format is OK (http://msdn.microsoft.com/en-us/library/k4w173wk(v=VS.85).aspx), but the Mozilla docs say it should be an RFC822 timestamp (https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Global_Objects/Date/parse).

Should try and support both formats.

[jzaefferer]

Meh, whatever.