[zanata/zanata-server] 60a527: add comment

[GitHub]

  Branch: refs/heads/replace-seam-security
  Home:   https://github.com/zanata/zanata-server
  Commit: 60a527d0ac717188c23491b400e9b87ee5eba7fa
      https://github.com/zanata/zanata-server/commit/60a527d0ac717188c23491b400e9b87ee5eba7fa
  Author: Patrick Huang <pahuang at redhat.com>
  Date:   2015-08-04 (Tue, 04 Aug 2015)

  Changed paths:
    M zanata-war/src/main/java/org/zanata/security/CheckPermissionDecisionVoter.java
    M zanata-war/src/main/java/org/zanata/security/annotations/CheckPermission.java

  Log Message:
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