FreeNAS Code

Roll up commit from ix repo

sync with ix repo, brings a whole raft of improvements to FreeNAS

Mega commit to merge with internal repo, adds AD, LDAP, ssh keys in database, improves migrations, and much much more

Extremely crude attempt to support upgrades.

Two minor tweaks to the installer to make it clearer that the commit dialog is your last chance to bail.

Cleanup templates

o Add the disk size to the choices to install onto.
o Move the warning screen until AFTER the install disk choice screen
- in future versions we'll have an upgrade option there
o loop over install.sh: if it exists, the install is borked. The only sane
thing we can do is restart the install process.
o Simplify things somewhat.

Code cleanup. Also, eliminate dialog boxes for shutdown and reboot. Move install process earlier in the rc boot script... maybe we could just replace it with what we have in install.sh, since it isn't doing much anymore.

Fix a couple of minor cosmetic things

Add back missing 'S'.