This PR addresses the open feedback on the Microsites feature

cms/djangoapps/contentstore/views/course.py

cms/djangoapps/contentstore/views/public.py

cms/envs/aws.py

cms/envs/common.py

cms/envs/microsite_test.py

cms/envs/test.py

common/djangoapps/edxmako/shortcuts.py

common/djangoapps/edxmako/startup.py

common/djangoapps/microsite_configuration/microsite.py

common/djangoapps/microsite_configuration/middleware.py

...ngoapps/microsite_configuration/templatetags/microsite.py

common/djangoapps/microsite_configuration/tests/__init__.py

...on/djangoapps/microsite_configuration/tests/test_logic.py

...angoapps/microsite_configuration/tests/test_microsites.py

common/djangoapps/student/views.py

common/djangoapps/util/request.py

common/test/test_microsites/default/readme.txt

...test/test_microsites/test_microsite/templates/footer.html

lms/djangoapps/branding/__init__.py

lms/djangoapps/branding/views.py