RFR: 300: Optionally post Jira web links as comments

[Robin Westberg]

Hi all,

Please review this change that posts Jira web links as comments if a security level has been requested, as web links
don't have this property. Also update some related logging.

Best regards,
Robin

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Commit messages:
 - Better support for security levels

Changes: https://git.openjdk.java.net/skara/pull/497/files
 Webrev: https://webrevs.openjdk.java.net/skara/497/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/SKARA-300
  Stats: 86 lines in 1 file changed: 60 ins; 16 del; 10 mod
  Patch: https://git.openjdk.java.net/skara/pull/497.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/497/head:pull/497

PR: https://git.openjdk.java.net/skara/pull/497