Getting ready for beta release.

Added version. Added --mail-to for guest-lvm-backup.

Remove -g argument for guest-lvm-tape and replaced with --no-shutdown-guest arguemnts.

Added --snapshot-size to guest-lvm-tape

Added mandatory guest-name to guest-lvm-tape
fixes change from (guest-name) parameter value to guest-name in guest-lvm-tape
Changes progress parameter to show-progress.
debugging... progress flag doesn't seem to be working
more testing
Fixed command line bug with --no-shutdown-guest

--no-shutdown-guest was wanting an argument. It doesn't need one. This was causing the --progress to be missed.
Update readme to latest info.
Bugfix. Signature block-size needed to be parsed into a number.
Merge branch 'release-0.9.0'