RFR: 1258: Add review link/details to comments section [v4]

[Guoxiong Li]

> Hi all,
> 
> This patch adds a comment to the jira issue when the corresponding PR is submitted. Because currently, the class `Issue` has no an api to remove a comment. So I need to create and implement it, too. And the test cases are added.
> 
> Thanks for taking the time to review.
> 
> Best Regards,
> -- Guoxiong

Guoxiong Li 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 five additional commits since the last revision:

 - Merge branch 'master' into SKARA-1258
 - Fix typo.
 - Move the code about adding comment out of the reviewLink block.
 - Not implement the unused method.
 - 1258: Add review link/details to comments section

-------------

Changes:
  - all: https://git.openjdk.java.net/skara/pull/1250/files
  - new: https://git.openjdk.java.net/skara/pull/1250/files/458dbd27..538891e3

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=1250&range=03
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=1250&range=02-03

  Stats: 338 lines in 17 files changed: 265 ins; 6 del; 67 mod
  Patch: https://git.openjdk.java.net/skara/pull/1250.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/1250/head:pull/1250

PR: https://git.openjdk.java.net/skara/pull/1250