celiac.org just released this candy list. It does not include some candy companies like Mars bars. I have a post about Halloween candy already and I am pretty sure they are almost the same except there are more options on the older post.
Happy Halloween!!!
http://celiac.org/images/stories/PDF/2013-candy-list.pdf
Here is the link from March 2013 with more options
http://celiacdisease.about.com/od/glutenfreefoodshopping/a/GFcandies.htm