v1.1

    Added support for custom fields in create_issue().
    Changed to allow multiple potential transitions in transition_issue().
    Made error reporting more informative.
    Added new trace() method for even more debugging.
    Refactored all requests to use a single internal request method.
    Extended and unified handling of update hashes.
    Formatting fixes in POD.
    (Patches provided by Tim Bunce <timb@cpan.org>.)