[zanata/zanata-platform] 2032e7: Add comment about SessionChecker

[GitHub]

  Branch: refs/heads/check-sessions
  Home:   https://github.com/zanata/zanata-platform
  Commit: 2032e7d61e9d9acd1dcae1900e14a08eea1494b1
      https://github.com/zanata/zanata-platform/commit/2032e7d61e9d9acd1dcae1900e14a08eea1494b1
  Author: Sean Flanigan <sflaniga at redhat.com>
  Date:   2017-09-08 (Fri, 08 Sep 2017)

  Changed paths:
    M server/zanata-test-war/src/main/java/org/zanata/rest/RemoteTestSignalerImpl.java

  Log Message:
  -----------
  Add comment about SessionChecker