simplify configuration, remove TEST_ name space for mscolab

[Reimar Bauer]

currently we need in the mscolab_settings.py also a setup for tests using a TEST_ namespace.

This should be shifted to a defined setup for tests which is created together with create_test data and use same namespace as for real data

Similar to https://bitbucket.org/wxmetvis/mss/src/develop/conftest.py#lines-50

this enables a better coverage because only one config is responsible and not a parallel path

[Reimar Bauer]

Merged in plant99/mss/i457 (pull request #722)

Fixes issue#457

→ <<cset f98a3cdba9d8>>