Rollout changeset 68493 <http://trac.webkit.org/changeset/68493>
        <https://bugs.webkit.org/show_bug.cgi?id=39136>

        Rollout changeset 68493 because it broke Sheriffbot's rollout feature.
        In particular, this change caused Sheriffbot to raise an exception when
        trying to parse the bug id on a bug page. We need to look into this
        some more.

        * Scripts/webkitpy/common/net/bugzilla.py:
        * Scripts/webkitpy/common/net/bugzilla_unittest.py:
        * Scripts/webkitpy/tool/bot/sheriff.py:
        * Scripts/webkitpy/tool/commands/download.py:
        * Scripts/webkitpy/tool/commands/queues.py:
        * Scripts/webkitpy/tool/commands/upload.py:
        * Scripts/webkitpy/tool/steps/closebug.py:
        * Scripts/webkitpy/tool/steps/obsoletepatches.py:
        * Scripts/webkitpy/tool/steps/preparechangelog.py:
        * Scripts/webkitpy/tool/steps/updatechangelogswithreviewer.py:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@68496 268f45cc-cd09-0410-ab3c-d52691b4dbfc