Add ca-certificates-java to ubuntu-trusty Dockerfile
When building Aurora 0.17 and 0.18 debs I had an error because there were no
ca-certificates. Adding the ca-certificates-java to the apt-get step in the
Dockerfile fixes this for both 0.17 and 0.18
Reviewed at https://reviews.apache.org/r/62220/
diff --git a/builder/deb/ubuntu-trusty/Dockerfile b/builder/deb/ubuntu-trusty/Dockerfile
index 7712549..595196a 100644
--- a/builder/deb/ubuntu-trusty/Dockerfile
+++ b/builder/deb/ubuntu-trusty/Dockerfile
@@ -18,6 +18,7 @@
RUN apt-get update && apt-get -y install \
bison \
+ ca-certificates-java \
debhelper \
dh-systemd \
devscripts \
