RFR: Add an issue link to RFR mails if the PR title contains one

[Robin Westberg]

Hi all,

Please review this change that adds an issue link to RFR emails if the PR title contains one. It also allows projects to specify their issue key in case it is different from the project name.

Best regards,
Robin

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Commits:
 - af1d7158: Add an issue link to RFR mails if the PR title contains one

  Stats: 84 lines in 11 files changed: 57 ins; 0 del; 27 mod
Changes: https://git.openjdk.java.net/skara/pull/149/files
 Webrev: https://webrevs.openjdk.java.net/skara/149/webrev.00
  Patch: https://git.openjdk.java.net/skara/pull/149.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/149/head:pull/149

PR: https://git.openjdk.java.net/skara/pull/149