only log to central when DEBUG=False and issue a warning to local logs when logcentral reply not 200. also some mimetype -> content_type for django 1.7
with django 1.7 we can no longer have NodeSoftware/nodes/ in the path since this will duplicate the model import as NODENAME.node.models and node.models. So imports like NODENAME.* are to be avoided and setting.NODEPKG = 'node' now.
fix imports for vald, also a bugfix for missing lande_ref_id
remove vald-prefix for vald node settings