[zanata/zanata-server] d64711: fix AuthenticationEvents

[GitHub]

  Branch: refs/heads/seam-to-cdi
  Home:   https://github.com/zanata/zanata-server
  Commit: d647112239e6074d9c640a55b43723a4a78b528e
      https://github.com/zanata/zanata-server/commit/d647112239e6074d9c640a55b43723a4a78b528e
  Author: Patrick Huang <pahuang at redhat.com>
  Date:   2015-11-18 (Wed, 18 Nov 2015)

  Changed paths:
    M zanata-war/src/main/java/org/zanata/action/AuthenticationEvents.java

  Log Message:
  -----------
  fix AuthenticationEvents

- jsfMessages is in WindowScoped so we need to check that
(we can't make AuthenticationEvents itself WindowScoped because no other
place references it so it won't be created)