* Pressing the logout button now brings the setup page up again
* Removing a server and readding one of which the hash of the address
has a higher value than the previous one does no longer cause the
application to request a login each time you open it.
* The method for deciding if the user is in setup has been changed. It
now checks if a page in the pageStack has the property _isSetupPage,
which works better than manually keeping track of state.