[zanata/zanata-server] 18e807: fix(ZNTA-634): add issue to release notes

[GitHub]

  Branch: refs/heads/ZNTA-634-configurable-session-timeout
  Home:   https://github.com/zanata/zanata-server
  Commit: 18e80764e22c00195aff316174f88253d64b3da2
      https://github.com/zanata/zanata-server/commit/18e80764e22c00195aff316174f88253d64b3da2
  Author: Carlos A. Munoz <camunoz at redhat.com>
  Date:   2015-10-01 (Thu, 01 Oct 2015)

  Changed paths:
    M docs/release-notes.md

  Log Message:
  -----------
  fix(ZNTA-634): add issue to release notes