Unfortunately, there are problems with making a single
view handle all kinds of authentication and certificate
selection. The layouts for the account settings screen
on phones versus tablets are just too different. So
now the certificate selection code has moved back to the
fragments themselves, and the authenticationView only
handles passwords and oauth.
Change-Id: I1ef0c69687a00029717b836458c85c1b0667ff95
Putting authentication in a fragment was a problem, it
means that we need fragments as children of other fragments.
While this works in theory, it adds a lot of complexity.
Now, authentication is done with AuthenticationView,
which is just an extension of LinearLayout.
Currently, this does not yet handle adding certificates
for exchange accounts, but I'll fix that ASAP. As it is,
this is better than the current state, which crashes on
account setup 100% of the time.
Change-Id: I4274e7250f97012c3dc476003fd36fb960f2b728
