FreeNAS Code

Make sure IP exists beforing use it in iSCSI Portal, otherwise alert!

Make sure to change status of the pool only if is not HEALTHY and there are "warnings" in action/status sections

Do-Not-Merge: cherry-pick from ix trunk

Updated for nginx.

Alert system should give a notice when zpool status -x have output

use named parameters to do not cause translation issues

Fix the alert subsystem so that it _actually_ reports alerts and is more robust.

The salient point was that the input provided to the log method was unicode objects; thus, by passing them through the unicode built-in, the email method no longer barfed when trying to send an alert as they were properly marshalled into string objects.

do not generate a warning if address = ''

attach email to alert system

alter the use if the webgui was not bind to the desired address

make sure to update alert status while setting a new password for admin (previously 'blank')