Fix security group modal header overflow

If you go to Edit Instance > Security Group
The two headers "All Security Groups" and "Instance Security Groups"
overflow when translated

Change-Id: I5acd0e4670a6595e6f38ba7f17371b6329ed5836
Closes-Bug:#1288402
Cleanup for Sahara fields

Since 'True' is the default value for 'required',
additional assignments are not needed.

Change-Id: If79dfe6ffff7fe30cec91b7f233035fe2e5b510a
Remove Cinder traces from test output

Closes-Bug: #1348561

Change-Id: If082fe45e055ee6806b148c4451fa28486ca846e
Merge "Cleanup for Sahara fields"
Merge "Remove Cinder traces from test output"
Merge "Fix security group modal header overflow"