[Doc] [4.3] Pluggable VM Snapshot for Review

[Radhika Puthiyetath]

Hi,

4.3 Documentation is getting ready to be reviewed. Please review sections 
Working with Snapshots, Virtual Machine Snapshots, and Implementing 
VMSnapshotStrategy.

The documentation is uploaded at 
https://issues.apache.org/jira/browse/CLOUDSTACK-4945.

Regards
-Radhika