The bin user doesn't need an actual home folder to run the tests. As
such this account should not be used in 'su - bin'. To be noted that
'su bin' still works as expected, and allow to run the minix test set
as usual.
Change-Id: I21fd178bf3b7b28849f05ef24930b553094cc851
We used to have an account "ast" as a token to Andrew S. Tannebaum,
the creator of MINIX. The account was disable by default, with no
possible way to login.
It seems it generates more confusion than it is worth, so this removes it.
The default skeleton user profile is still stored into /etc/ast instead
of the usual /etc/skel.
Change-Id: I71818c0bb9580cdecfa9621f8693586fc48d17cb
