Merge pull request #170 from edx/azarembok/cert-fix

cms/djangoapps/contentstore/tests/test_utils.py

cms/djangoapps/contentstore/utils.py

cms/djangoapps/contentstore/views/certificates.py

cms/djangoapps/contentstore/views/tests/test_certificates.py

lms/djangoapps/badges/events/course_complete.py

lms/djangoapps/badges/events/tests/test_course_complete.py

lms/djangoapps/certificates/api.py

lms/djangoapps/certificates/tests/test_api.py

lms/djangoapps/certificates/tests/test_support_views.py

lms/djangoapps/certificates/tests/test_views.py

lms/djangoapps/certificates/tests/test_webview_views.py

lms/djangoapps/certificates/urls.py

lms/djangoapps/certificates/views/webview.py

lms/djangoapps/mobile_api/users/tests.py

lms/templates/certificates/url_unsupported.html