[zanata/zanata-server] a01bb3: Add more checks for stale TM results

[GitHub]

  Branch: refs/heads/fix-npe
  Home:   https://github.com/zanata/zanata-server
  Commit: a01bb386785c92a1f865842b8078f1a434dc5c47
      https://github.com/zanata/zanata-server/commit/a01bb386785c92a1f865842b8078f1a434dc5c47
  Author: Sean Flanigan <sflaniga at redhat.com>
  Date:   2015-10-12 (Mon, 12 Oct 2015)

  Changed paths:
    M zanata-war/src/main/java/org/zanata/service/impl/TranslationMemoryServiceImpl.java

  Log Message:
  -----------
  Add more checks for stale TM results