RFR: Allow the notify bot to watch multiple branches

[Robin Westberg via github.com]

Hi all,

Please review the following change that adds support to the notifier bot for watching multiple branches. It also adds the branch name to the subject of the email if more than one branch is watched.

Best regards,
Robin

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Commits:
 - a0451ce8:	Only report the branch if watching more than one
 - 03c9a059:	Allow the notify bot to watch multiple branches

Pull request:
https://git.openjdk.java.net/skara/pull/89

Webrev:
https://webrevs.openjdk.java.net/skara/89/webrev.00

Patch:
https://git.openjdk.java.net/skara/pull/89.diff

Fetch command:
git fetch https://git.openjdk.java.net/skara pull/89/head:pull/89