Mark UFS legacy in treeview
Merge pull request #28 from alfredperlstein/ufs_legacy_treeview

Mark UFS legacy in tree menu
Disable IPv6 in jails for now

It is broken in many ways and needs more careful attention.
Use the right url for ipv6 addresses
9.1.1-RELEASE
Disabled AIO for now

Ticket:	#3079
(cherry picked from commit d220ef121eb2a5c4ffc0ab5299252e1878366fa8)
Merge branch 'releng/9.1.0' of https://github.com/freenas/freenas into releng/9.1.0
Add /etc/version if it exists.
add /etc/version, extract textdump.
add comments
fix spelling mistake