Issue 3641: Update Pravega version in master (#3642)
Issue 3641: Update Pravega version in master (#3642)

* Updates Pravega version in master to 0.6.0-SNAPSHOT

Signed-off-by: Flavio Junqueira (fpj) <48c356ff4855e878e2050cfad72b47f4633a5eef@emc.com>
pravega/pravega,pravega/pravega,pravega/pravega