RFR: 885: jbsupdater -pool record consumption modifications [v2]

[Erik Joelsson]

> This patch changes how -pool records are consumed, to help differentiate between OpenJDK and OracleJDK update releases. OracleJDK update releases have moved to using fixVersions with an -oracle suffix. With this change, pool record consumption for such releases will also use an -oracle suffix. I opted for a very simple implementation, where any "-suffix" on a fixVersion is now required as suffix on a -pool version to be a match. I think this makes the most sense and keeps things simple going forward.
> 
> While in the area, I also removed logic for treating N-open fixVersions the same way as N-pool versions. I have no memory of seeing that behavior in action and I believe that implementation was based on a misunderstanding. I could be wrong however, so if anyone can think of a reason to keep that logic, please let me know.

Erik Joelsson has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - Fall back to normal N-pool records if no matching N-pool-<opt> record is found
 - Merge branch 'master' into SKARA-885-pool-records
 - SKARA-885

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Changes:
  - all: https://git.openjdk.java.net/skara/pull/1233/files
  - new: https://git.openjdk.java.net/skara/pull/1233/files/b59a7468..a1cf9edd

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=1233&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=1233&range=00-01

  Stats: 81 lines in 8 files changed: 41 ins; 4 del; 36 mod
  Patch: https://git.openjdk.java.net/skara/pull/1233.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/1233/head:pull/1233

PR: https://git.openjdk.java.net/skara/pull/1233