Apparently, Rake's way of reloading the task code confuses the code
coverage report. Code tested by rake task specs was not recognised as
covered even though it was.
The new product image import spec was loading rake tasks multiple times.
That make the spec for enterprise deletion fail when executed afterwards
because the deletion task was executed twice and failed the second time.
Note this task is still rather naive and only covers the simple case
where an enterprise was created but never used and thus, does not have
any associated entities like orders.
This is enough for the case I have at hand where a hub's manager created
an enterprise while he wanted to create a user account #ux. He ended up
with an enterprise named after him and now he asked us to clean that up.
