Add zfs send capabilities to latest snapshot done

Added a simple capabilities, with automatic increment if possible: zfs send.

<pre>
-bhost host  = send the dataset to the indicated host using ssh.
               You can indicate the key to be used, quotes are important: 
               -bhost "-i #path to ssh key# #user#@#domain#" 
-bpool pool  = remote pool receiving the dataset 
-bz          = send to remote using gzip (both source and dest shall have gzip installed)
</pre>