Added correction of parsed ipynb notebooks closes #194

core/migrations/0022_auto_20191012_1539.py

core/migrations/0023_merge_20191013_1908.py

core/models/submission.py

core/models/submission_type.py

core/serializers/submission.py

core/serializers/subscription.py

core/views/common_views.py

frontend/src/api.ts

...bmission_notes/toolbars/AnnotatedSubmissionTopToolbar.vue

frontend/src/models.ts

frontend/src/pages/student/StudentSubmissionPage.vue

frontend/src/store/modules/submission-notes.ts

requirements.txt

util/importer.py