workaround: exclude rpm tests from testcaselist

This is necessary because we don't have reasonable defaults for rpm
tests commited in the repository. Moreover some additional work needs
to be done to clean up rpm tests wrt new usmqe config module.

See also: usmqe#219

tox.ini

@@ -18,7 +18,7 @@ skip_install = true
 [testenv:testcaselist]
 basepython = python3.6
 deps = -r{toxinidir}/requirements.txt
-commands = {envpython} -m pytest --collect-only --ignore=usmqe_tests/demo usmqe_tests
+commands = {envpython} -m pytest --collect-only --ignore=usmqe_tests/rpm --ignore=usmqe_tests/demo usmqe_tests
 
 # This enviroment runs usmqe unit tests in place
 [testenv:py36]