Correct the exception message

Correct the exception message of class ServiceUnavailable

Change-Id: I8126a83df01199a5af32bd7742fcf0fa511bd598
Imported Translations from Transifex

Change-Id: I923ac8886d037c4d4318fc29b5a9ad8a3367b88f
Fixes port status hanging to build status

ML2 plugin changes the port status to "build" when get_device_details
is called. For this reason, the port status must be updated once the
port details are processed.

Fixes bug: #1224991

Change-Id: I2c0321073cc07e1764fedbfbecbc844557ac6bc9
Merge "Correct the exception message"
Merge "Imported Translations from Transifex"
Merge "Fixes port status hanging to build status"