DataSync FeedAPI imports FeedAPI feeds using DataSync
(http://drupal.org/project/datasync) instead of with hook_cron.

There are several benefits to doing this:
- It prevents FeedAPI imports from timing out cron.php and ensures
  FeedAPI imports run on schedule even if another long-running
  hook_cron job is running.
- It allows you to specify different schedules for different feeds
  (eg. you can run one feed import every hour and another every day).
  Normally, FeedAPI runs on every cron run.
- You can use DataSync's error-handling support which will rollback all
  database changes in the case of an error and reschedule the feed
  import to rerun.
- You can extend the default DataSync FeedAPI job class to run your own
  custom jobs.

Instructions:
0. Create any feed nodes you want to import with FeedAPI
1. Download datasync and datasync_feedapi to your modules folder
2. Enable datasync, datasync_scheduler, and datasync_feedapi modules
   at /admin/build/modules
3. Set up DataSync according to that module's instructions
4. Enable the FeedAPI job type at /admin/settings/datasync 
5. Go to /admin/settings/datasync/schedule and schedule a job of type
   FeedAPI to run at an interval of your choosing. Select the feed to
   be downloaded with that job.
6. You may now want to prevent cron.php from running and use
   datasync_cronalt (which is in the datasync package) or specifically
   stop feedapi_cron from running.

