Fix bug 1262: docker build updates to use latest npm and ubuntu1804

Change-Id: I63a0b1ae854e6bd3173c938b04d6c1793412780f
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
(cherry picked from commit 0eb6c8b8eb96a05fda9543e53db046ad4d92399f)
1 file changed