Issue 3053: Update Pravega version to 0.5.0-SNAPSHOT in master (#3054)
Issue 3053: Update Pravega version to 0.5.0-SNAPSHOT in master (#3054)

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