allow bare excepts in flake8

Change-Id: I4751f9f65712960019f9a303b7d7fe017c6e85c7
Add a DebugLogger for wsgi server tests

Change-Id: Ifd2528be443ba3879bf4921f6c5f4ef31f29044b
Merge "allow bare excepts in flake8"
Merge "Add a DebugLogger for wsgi server tests"