Set up the AddAccountDialog so it will return a new account object with
the information the user typed into the text boxes once they press the
submit button, then it closes the add account dialog. I have't quite
figured out how to add it to the user's main list of accounts. I tried
importing the session manager and setting accounts to public.
Merge branch 'master' of https://github.com/Nigel-C/ClaspUI.git