added ability to turn off anonymizing by using a get parameter

I have anonymize turned on by default but recently my work has blocked the anonymizer and so I needed an easy way to turn it off just for a given session (I still want anonymizing at home and elsewhere).  So to use:  add ?anonymize=0 to your main url and refresh (no/n/false/f will also work).  To turn it back on add ?anonymize=1 and refresh.  The anonymize state is stored in the session.