Changes between 3.1.2 and 3.2.0
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* tools.Nick class added for RFC-compliant nickname comparison and storage
* Returning willie.NO_LIMIT from a callable ignores the rate limit for that call
* get_list() added to ConfigSection. Will reliably return a list from a config attribute.
* A number of bugs regarding admin and operator lists were fixed
* Unusual mode changes no longer cause errors
* Times shown by .t, .in, etc. all now use formats set by .settimeformat
* sed feature can use backslashed slashes in substitutions
* Weather module was rewritten, and now uses Yahoo! Weather
* Numerous stability and usability fixes
