Add new functionality to @wip
Add new functionality to @wip

@wip now will take a bugid argument and an expected exception. If
the exception raised is different than the expected exception the
test will fail. The bug id is to ensure we have a clear way of tracking
bugs when @wip is used (rather than hoping it is just in the "message"
string).

Change-Id: Id3814b9ce299300a3c97d4ee0b55666be237172a

rajalokan/keystone,openstack/keystone,mahak/keystone,ilay09/keystone,ilay09/keystone,openstack/keystone,rajalokan/keystone,cernops/keystone,ilay09/keystone,mahak/keystone,rajalokan/keystone,mahak/keystone,cernops/keystone,openstack/keystone