Merge pull request #811 from cpennington/initialize-mitxmako-at-startup

common/djangoapps/mitxmako/middleware.py

common/djangoapps/mitxmako/shortcuts.py

common/djangoapps/mitxmako/startup.py

common/djangoapps/mitxmako/template.py

...djangoapps/student/management/commands/6002exportusers.py

...djangoapps/student/management/commands/6002importusers.py

...on/djangoapps/student/management/commands/assigngroups.py

common/djangoapps/student/management/commands/emaillist.py

common/djangoapps/student/management/commands/massemail.py

...on/djangoapps/student/management/commands/massemailtxt.py

common/djangoapps/student/management/commands/userinfo.py

common/lib/django_startup.py

lms/djangoapps/certificates/queue.py

...djangoapps/courseware/management/commands/check_course.py

lms/djangoapps/courseware/tests/test_views.py

lms/djangoapps/instructor_task/tasks_helper.py