Hi Glenn and Eloy,
The Moodle flavours plugin allows the creation of new classes to package/deploy all sort of things which belongs the the system context level like roles, site scales or custom language strings... but the GSOC project does not cover all the options, the current release can package and deploy plugins, language packs, custom language strings and site administration settings, but other intredient types can be added in future.
If you are interested on roles support or on adapt your development to Moodle flavours, there is a public interface to implement different ingredient types without so much trouble (just a constructor and 4 methods) you can see an example here https://github.com/dmonllao/moodle-local_flavours/blob/master/ingredient/flavours_ingredient_lang.class.php if you need something please tell me