Rebased to version 1.1.0
    Support for bugzilla tokens (Arun Babu Nelicattu)
    bugzilla: Add query/modify --tags
    bugzilla --login: Allow to login and run a command in one shot
    bugzilla --no-cache-credentials: Don't use or save cached credentials
    when using the CLI
    Show bugzilla errors when login fails
    Don't pull down attachments in bug.refresh(), need to get
    bug.attachments manually
    Add Bugzilla bug_autorefresh parameter.