[zanata/zanata-platform] feb3bf: use PREPEND_JAVA_OPTS instead

[GitHub]

  Branch: refs/heads/docker-compose
  Home:   https://github.com/zanata/zanata-platform
  Commit: feb3bfafbe918ef697e20e7e66408a8420d1d45e
      https://github.com/zanata/zanata-platform/commit/feb3bfafbe918ef697e20e7e66408a8420d1d45e
  Author: Patrick Huang <pahuang at redhat.com>
  Date:   2017-10-04 (Wed, 04 Oct 2017)

  Changed paths:
    M server/docker/docker-compose.yml

  Log Message:
  -----------
  use PREPEND_JAVA_OPTS instead