Merge pull request #1 from dostavro/master

Minor modifications
configuration files
error control on commands tell load save stat. Not 100% tested.
changes for new configuration files
adding a configure message to delete a user
Adding the -w option on tell command. Default behaviour is not to wait until the node is pingable.
1) Changed inform messages of cm_factory so that they report current state and desired state,
instead of event_type/message. Also correspending changes to omf6 script are completed.
2) Some refactoring.
3) Some clean up.
fixed a bug in error messages handling