Upgrade elasticsearch v6.3.0

Resolves a security issue around information disclosure. The
recommendation is to upgrade to this version for the fix.

Issue-ID: POLICY-1063
Change-Id: Idebb19d2c530b716a25aa91832c053e6b2d0ffce
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>
3 files changed