2012-11-14  Andrew McNabb  <amcnabb@mcnabbs.org>

    * Bump the version to 0.9.

    * Relicense under the Apache Software License instead of the GPL.

    * Support data larger than available RAM, configurable with a new
    --mrs-max-sort-size option.

    * Add extended documentation including a new User Guide.

    * Allow custom serializers in addition to pickle (the default serializer).

    * Add a new data-intensive example, Walk Analyzer, contributed by Matt
    Gardner.

    * Set a maximum number of failures per task, configurable with the new
    --mrs-max-failures option.

    * Fix a variety of bugs.
