wait for sshd to start in example
Avoid reverse DNS lookup
accept command line args in baresshd.py
examples/baresshd: ensure root permissions
Prevent idiots like me from getting confused by non-obvious 'broken pipe'errors when they forget to put 'sudo' in front :-)
Fix examples to work with new API (and vice-versa.)
Added simple example of using API just to create a namespace.