Releases for markItUp Content Editor

Initial release of markItUp for Drupal outside of CVS. This is still very alpha, but nearly feature complete. At the time of this initial release, the live preview isn't working correctly, and there are a few other quirks and some interface cleanup pending. And a full coding standard review that needs to happen. But at this point, I've deemed it worthy to get it out there, in the hopes others may decide to get involved.