needy integration tests should clean up after themselvs

[shiggan]

integration tests are a bit needy; now we have most of the SQ api in place they should do their own setup and teardown; and just in case tear down anything already setup.

due to limitations in SQ we cant manage things at the 'application' level; however we can purge the likes of data/schema/assets/tags before an integration test runs - and of course as clean up

integration tests are already limited to running sequentually (because of the fact they must operate on a app that exists already); look at this once the security api is sorted