Fixed buildout settings

- force betamax version and
- proper pytest arguments.

Author: guyzmo

buildout.cfg

@@ -17,15 +17,15 @@ interpreter = python3
 
 [pytest]
 recipe = zc.recipe.egg
-arguments = ['--cov=git_repo', '--cov-report', 'term-missing']+sys.argv[1:]
+arguments = ['--cov=git_repo', '--cov-report', 'term-missing', '--capture=sys', 'tests']+sys.argv[1:]
 eggs = pytest
        pytest-cov
        pytest-xdist
        pytest-sugar
        pytest-capturelog
        testfixtures
        mock
-       betamax
+       betamax==0.5.1
        betamax-serializers
        git_repo
 interpreter = python3