Use stubout in test_correlation_id

Best to use stubout for stubbing out methods like this. That way they
get properly unstubbed on failure.

Change-Id: I61dc96d01e331e8d811b8f24137e8f738cf09215
Ignore backup files in .gitignore

Change-Id: I71af28ec8e75f321961826e2653fee9b99a87c1c
Remove rootwrap from IPC directory creation

Removes processutils/rootwrap dependency.
Fixes bug 1160420 and partially fixes 1180631.

The attempt will still be made to create
/var/run/openstack, but will give a reasonable
error when it happens.

If the directory exists, but permissions are denied,
we should also give a reasonable error.

A patch will be submitted to devstack
that will set and create the IPC directory as necessary.
Packagers should do this as well.

Change-Id: I7814320adbfd0b2fe54cc2e523452c18ab2e7687
Enable hacking H201 test

H201  no 'except:' at least use 'except Exception:'

Change-Id: Ibfab55ace63636d3507fbdad46d1436b8ec83475
Merge "Use stubout in test_correlation_id"
Merge "Remove rootwrap from IPC directory creation"
Merge "Ignore backup files in .gitignore"
Enable hacking H401 test

H401  docstring should not start with a space

Change-Id: I761665ea9aff1f55de9f629ff8d108ba141eaf79
Enable hacking H403 test

H403  multi line docstring end on new line

Change-Id: I33249651026b54ef346214965e909835288bb14e
Merge "Enable hacking H201 test"
Merge "Enable hacking H401 test"
Merge "Enable hacking H403 test"