Update greenmail-standalone docker base image (fixes #272)
Update greenmail-standalone docker base image (fixes #272)

Update docker base image from openjdk:7u181-jdk-alpine3.8 to openjdk:7u201-jre-alpine3.9

greenmail-mail-test/greenmail,marcelmay/greenmail,marcelmay/greenmail,greenmail-mail-test/greenmail,marcelmay/greenmail,greenmail-mail-test/greenmail,marcelmay/greenmail,marcelmay/greenmail