Merge branch 'master' into 'convenience_test_data_method'

core/serializers.py

core/tests/test_access_rights.py

core/tests/test_functional_views.py

core/tests/test_student_page.py

core/urls.py

core/views.py

frontend/config/index.js

frontend/index.html

frontend/package.json

frontend/src/App.vue

frontend/src/assets/logo.png

frontend/src/components/Login.vue

frontend/src/components/base/BaseLayout.vue

frontend/src/components/student/StudentLayout.vue

frontend/src/components/student/StudentNav.vue

frontend/src/components/student/StudentPage.vue

frontend/src/components/student/SubmissionDetail.vue

frontend/src/components/student/SubmissionList.vue

...d/src/components/submission_notes/AnnotatedSubmission.vue

frontend/src/components/submission_notes/FeedbackComment.vue