Updated matching on External Providers and Improved Updates

Let's talk, this has been my first work with DocumentDB. I had an original problem with external logins not working, The change to update the matching behavior using a UDF seems to work great. I then ran into problems with the updates not seeming to work right consistently. I updated them to work in the scenarios I tested. I'm workign on a site with external login only. Let me know how I can help. I think DocumentDB is way to go for this data as we are hoping to get a lot of users on our site and I want to scale easily.