Rename setup_extensions_test_app so that nosetests ignores it
Rename setup_extensions_test_app so that nosetests ignores it

Allows the use of openstack.nose_plugin's coloring/output for
nosetests should the user desire to not use run_tests.sh/py

JioCloud/oslo-incubator,JioCloud/oslo-incubator,JioCloud/oslo-incubator