131 test modules sat next to the code they test; instances alone had
51 of them beside views.py and utils.py. They move into a
tests/ package per app, and the JavaScript checks into
webvirtcloud/tests/js. Each non-empty tests.py becomes tests/test_views.py;
the empty generated stubs are removed.
Imports of the app's own modules become absolute, paths built from
__file__ go one level up, the live helper is instances.tests.livetest,
and coverage omits */tests/*. The suite discovers the same 960 tests as
before.
The editor shows its Change button only for a shut-off VM, but
change_xml did not check the state: a page loaded while the VM was off
could still be saved after it was started, and the posted XML then
overwrote every change made to the definition in between. The view now
refuses unless the VM is shut off, with a message.
