-Updated google javascript api version
-Removed dependency on doTimeout
-Added failsafes for auth failures with google drive.

When our auth_token is no longer valid, we first try to silently renew it. Then we ask the user to log back in. If they do not, we ask again, and if they don't again. We finally will try to enable offline mode
-Now do exponential backoff with a max retry ammount of 5 for unknown errors on put and get files
-updated several parts of code to deal with instances where null is returned from GoogleAPIs.getFile
-Added a blurb to the metadata not found dialog to let the user know what metadata is.