googleTrends addition

Let me know if there are some changes that should be done, I am testing this my self now and it at least has run two days in a row for me.
I believe... I did that because I was having issues trying to verify history was correctly removed from the set of values to be returned.  I was doing a search and passing back the same set to a second search.  I think I had to make a copy so that the second run wouldn't actually have the history (previous run) be exactly the same set as the new queries it was generating.