Add the virtualbox kernel modules to the build

This brings us one step closer to being able
to run virtualbox in a jail.
Only migrate template names in the south migration

- zpool's are not available when the migration is occuring and things
  blow up badly because of this
- Add new function in ix-warden that will migrate templates if necessary
  on start (moved this functionality out of the south migration)
Switch to 9.2.0-RC
Do not collect passX disk nor usbusX interfaces

We do not do anything with them right now in reporting, this will save
some space.
Merge remote-tracking branch 'github/pootle'
Add hook to check for a feature
Do not show UFS in volume manager if it is disabled
Do not show UFS in the tree menu if disabled as well
At the final step of installation: the message box (dialog --msgbox)
would quit if we pressed "O", so the extra Return with sendline would
send us back to the first option of the menu which would lead to the
installer again.
Revert "Adjust side of the progress bar"

This reverts commit fa326754a7ab01d9e1fde0c27942fd80f8b8bd51.
Do not set a minimum width for volume manager

Ticket:	#2390
Javascript bugfixes

- If a javascript variable is null, not try and use it
Do not generate rc.conf file if there is a upgrade sentinel file

Fields used to generate rc.conf may have not exist yet (they will after
the upgrade is ran)

Ticket:	#3592
Auto-Commit of i18n data from Pootle