Added up to 11 comment levels to be imported. Changed "private" to "draft" post status.

I had to migrate a full site with a lot of nodes and a lot of nested conversations in comments. Adding migration path for these extra levels allowed me to recover 100% of comments, where migrating only the first reply level recovered around 83% of comments. Also, changed "private" to "draft" when post is not public (unpublished Drupal nodes no longer appear as published in private mode, but they remain as draft).
Making something useful out of this readme file.
Extra info in readme
Merge pull request #2 from versvs/master

Added up to 11 comment levels to be imported. Changed "private" to "draf...