Google Code-in

This task is to add support for adding user supplied roms for advancemame. Work for this task should be submitted as a pull request at haikuports.
You might have to use GLOBAL_WRITABLE_FILES and/or USER_SETTINGS_FILES, and patching may be required in order to move the settings from ~/.advance to the proper location.

Important: please read the generic instructions for "recipe" tasks, as we have a lot of these: https://dev.haiku-os.org/wiki/GoogleCodeInTaskRecipe