Check that a nic has a port in project_apply
dell: Log into switch only once in apply_networking
Log a warning for unattached NICs
Fix 'log out' comment
Clean up logging code
Merge pull request #220 from gsilvis/204

Check that a nic has a port in project_apply
Merge pull request #221 from gsilvis/213

dell: Log into switch only once in apply_networking