The following subcommands have been added:
* abortbootstrap Cancel and undo an inflight bootstrap
* abortmove Cancel and undo an inflight token move
* abortdecommission Cancel and undo an inflight decommission
* assassinate Remove a node from cluster metadata
* resetcms Redefine the CMS membership
* move Modify a node's (single) owned token
* describe Output a summary of the cluster metadata
* forcejoin Force a registered or joining node into a JOINED state
* print Output a full rendering of cluster metadata
* printdirectory Output a full rendering of the directory
* printdataplacements Output the full data placements
Patch by Venkata Harikrishna Nukala; reviewed by Alex Petrov and Sam Tunnicliffe
for CASSANDRA-19151
nvharikrishna