Log Message:
- updated to 1.19

Changelog:
i1.19 (2008/10/22)
    *   (ms) Applied patch by Peter Rabbitson, which fixes the caller()
             level when calling get_logger() on a subclass of Log4perl.
    *   (ms) Added documentation on is_xxx() methods and clarified that
             it doesn't necessarily mean that a message gets logged if
             they're returning true (requested by Conway Allen via
             [rt.cpan.org #39085].
    *   (ms) Applied patch by Lee Johnson to appender_by_name() to allow
             for undefined appender names without issuing a warning,
             which was occurring with Catalyst::Log4perl.
    *   (ms) Added docs on numerical levels and level strings in
             Log::Log4perl::Level.
    *   (ms) Applied patch by Anthony Foiani for support of literal
             text in DateFormat format strings.