[skara] RFR: tester: use job id instead of submission id

[Erik Helin]

Hi all,

please review this small patch that makes the tester bot use the returned job id instead of the calculated submission id when displaying started jobs.

Thanks,
Erik

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Commit messages:
 - tester: use job id instead of submission id

Changes: https://git.openjdk.java.net/skara/pull/1102/files
 Webrev: https://webrevs.openjdk.java.net/?repo=skara&pr=1102&range=00
  Stats: 38 lines in 2 files changed: 12 ins; 0 del; 26 mod
  Patch: https://git.openjdk.java.net/skara/pull/1102.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/1102/head:pull/1102

PR: https://git.openjdk.java.net/skara/pull/1102