[zanata/zanata-server] f25b57: Fix null pointer exception

[GitHub]

  Branch: refs/heads/rhbz981067
  Home:   https://github.com/zanata/zanata-server
  Commit: f25b57037a8914536cedaedc2fec6dc58a9be433
      https://github.com/zanata/zanata-server/commit/f25b57037a8914536cedaedc2fec6dc58a9be433
  Author: Alex Eng <aeng at redhat.com>
  Date:   2013-07-14 (Sun, 14 Jul 2013)

  Changed paths:
    M zanata-war/src/main/java/org/zanata/dao/PersonDAO.java

  Log Message:
  -----------
  Fix null pointer exception