Allow ProgressDialog to lose state in the account wizard.
This should fix bugs caused by the behavior described here
http://www.androiddesignpatterns.com/2013/08/fragment-transaction-commit-state-loss.html
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@+id/settings_menu_create_account"
android:visible="true"
android:icon="@drawable/ic_menu_invite"
android:title="@string/settings_menu_create_account" />
</menu>