[Rev 01] RFR: 217: Enforce check on number of required reviewers

[Robin Westberg]

> Hi all,
> 
> Please review this change that allows Reviewers of a PR to override the default number of required reviews as configured in the jcheck configuration file.
> 
> Best regards,
> Robin

The pull request has been updated 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.

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Added commits:
 - 059862b4: Updated after review
 - aff8ba3e: Merge remote-tracking branch 'upstream/master' into reviewers
 - daac177f: 234: Allow more granular jcheck reviewer configuration
 - 5438f4b8: Merge remote-tracking branch 'upstream/master' into reviewers
 - 3d62e289: Avoid quoting an empty review body
 - 9f56fcae: Post the incremental webrev url in the PR comment
 - 326e4d3d: 233: Merge bot should be able to multiple branches
 - 5470429e: Fix incorrect use of optional result
 - fd9d0e68: Handle redirects manually
 - a667c285: 231: The merge bot cannot create merge conflict PRs

Changes:
  - all: https://git.openjdk.java.net/skara/pull/364/files
  - new: https://git.openjdk.java.net/skara/pull/364/files/6a6b9253..059862b4

Webrevs:
 - full: https://webrevs.openjdk.java.net/skara/364/webrev.01
 - incr: https://webrevs.openjdk.java.net/skara/364/webrev.00-01

  Stats: 849 lines in 35 files changed: 601 ins; 60 del; 188 mod
  Patch: https://git.openjdk.java.net/skara/pull/364.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/364/head:pull/364

PR: https://git.openjdk.java.net/skara/pull/364