Node published after inline_register even if not published by default

Issue Summary

One of my content types is not published by default. If I create this node type with inline_registration the ['status'] field is unset so that the user will be created with default values. But If this field is unset the following node_save will asume that the node should be published and will not save it as unpublished.
This patch will save the value of the ['status'] field before the call of unset and will reset the form after creating the user.