At this stage, the latest composer.phar release 9b70b89b8f8d60b56b5900ea232109427604c748, which does NOT include any of the plugin jazz. I've set it up ready, on the feature/simply branch, however we're not pushing it main until the phar archive is updated and people are using it.

Signed-off-by: Ben Corlett <bencorlett@me.com>