A whole slew of changes related to signing.

Note that signing and verification DO NOT WORK yet.
This is mainly to get the framework in.  Also get the
key files distributed.  From this, I can start doing
more real testing.  Also I don't have to worry so much
about losing my changes.
Increase the height of the update datagrid

Ticket:	#6395
More code changes to WebDAV

Finally, fixed the javascript on it.
Fixing copy/paster errors (I know, I know)
Hook up the VMWare Plugin GUI to the autosnapper.

Ticket: #6396

With this change, if you define a VMWare Plugin Object FreeNAS
will snapshot any running VMs you have in VMWare before taking
a ZFS snapshot of the dataset or ZVol backing the VMWare datastore
the VMs are running on.

The result of this is that your ZFS snapshots will contain
coherent VM snapshots.  Useful for DR if you are replicating the ZFS
ZVols/datasets.
Merge remote-tracking branch 'origin/master' into freebsd10