BOOKKEEPER-920: Extend bk-merge-pr.py to add more info to Jira ticket…
BOOKKEEPER-920: Extend bk-merge-pr.py to add more info to Jira ticket…

… when merging

Author: user.email <mmerli@apache.org>

Reviewers: Sijie Guo <sijie@apache.org>

Closes #36 from merlimat/bk-920

sijie/bookkeeper,sijie/bookkeeper,sijie/bookkeeper,sijie/bookkeeper,ivankelly/bookkeeper,apache/bookkeeper,apache/bookkeeper,ivankelly/bookkeeper,apache/bookkeeper,apache/bookkeeper,apache/bookkeeper,robindh/bookkeeper,sijie/bookkeeper,sijie/bookkeeper,ivankelly/bookkeeper,sijie/bookkeeper,robindh/bookkeeper,apache/bookkeeper,robindh/bookkeeper,sijie/bookkeeper