FreeNAS Code

Add method to return nodes with UNAVAIL status in the Pool

Find the old path of the unavail disk in zfs using zdb

Fix typo.

Modified pbi delete method to remove mountpoints associated with it (I thought foreign keys automatically cascaded deletes, I guess I misunderstood). Added method to remove the plugins jail as well, leaving debug syslog calls in for now, will remove once tested more thoroughly.

Check for disk serials before creating new Disk entries

Do-Not-Merge: This will be handled in another way

Fix logic on the sync_disk method

If the disk identifier is not found in the database check for the
disk name and update that entry instead of creating a new one.

Do-Not-Merge: Will be handled in another way later

Fix a zpool status parse for ZFS v28 for when the time comes

Do-Not-Merge: Already handled

Fix name of the raised exception in the docstring

(pointed out by gcooper)

Make sure to delete a static route using the masked version

Make sure to try to delete a static route from the routing table

TODO:
When a static route is entered it is placed in the database as-is.
So, if you enter 10.50.50.50/8 in reality it will be 10.0.0.0/8
and then fail to be deleted from GUI because the former is not
accept for route(8)