Fix adding a new account
Fix adding a new account

Apparently Backbone.Collection.fetch resolves its promise with
the raw data returned by the ajax call. Since the consuming code
relied on getting proper Account models, it failed when a new
account was added. This fix 'converts' the promise so that it
resolves with a collection of Account models.

Signed-off-by: Christoph Wurst <7abde52c298496fa169fb750f91f213a282142af@winzerhof-wurst.at>

ChristophWurst/mail,ChristophWurst/mail,ChristophWurst/mail,kingjan1999/mail,kingjan1999/mail,kingjan1999/mail