RFR: 1258: Add review link/details to comments section [v2]

[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 incrementally with two additional commits since the last revision:

 - Move the code about adding comment out of the reviewLink block.
 - Not implement the unused method.

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

Changes:
  - all: https://git.openjdk.java.net/skara/pull/1250/files
  - new: https://git.openjdk.java.net/skara/pull/1250/files/0dca8e8d..bcfee9d5

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=1250&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=1250&range=00-01

  Stats: 18 lines in 4 files changed: 3 ins; 7 del; 8 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