Install edx-submissions from PyPi instead of from edx-ora2

Fix Notes import

Conflicts:
	common/djangoapps/course_modes/views.py
	common/djangoapps/student/tests/test_roles.py
	common/djangoapps/student/views.py
	common/lib/opaque_keys/opaque_keys/__init__.py
	common/lib/opaque_keys/opaque_keys/tests/test_opaque_keys.py
	common/lib/xmodule/xmodule/contentstore/mongo.py
	lms/djangoapps/certificates/management/commands/gen_cert_report.py
	lms/djangoapps/notes/views.py

Fix performance regression

Flowerhack/conditional module rendering

Production stack doc in ops guide

Studio: Flexible Status Notifications

Sarina/other ok fixes

Sarina/fix openended logging

because keys are immutable

Remove course_from_id
don't fetch whole course when the root will do
don't fetch even the root if the id will do
check for definition.data == null

Move .pep8 content to setup.cfg

Encrypt the session id before writing to tracking logs.

locking version of requests-oauthlib to 0.4.0

Serve ORA2 JavaScript i18n strings

Update test database cache

Added logging for sender email address on BotoServerError.