FreeNAS Code

Add device sa to the amd64 kernel, which gets it closer to the i386 kernel config and fixes ticket 614

fix a few quirks found by pylint

warn user of existing shares and ask permission when deleting a volume

do not render value for password in AD edit dialog; add confirm password field

Adding DNS module to query DNS for AD SRV records to locate Global
Catalog servers. I'm sure this will be useful in other areas as well.

Set mountd_enable, nfs_server_enable and nfsd_enable to YES when there is
NFS share.

Proper-case FTW! Thanks matto :)

By default, don't allow root login with password. The user is supposed
to change the password from the user interface before they can login
via ssh for instance. This would reduce the chance of having the system
being rooted.

Allow trusted domains.

Instead of throwinig a backtrace, do a try..catch construct and handle the
error.