Make a change to cause tests to run.

* Switch make upgrade to Python 3.5

* bok-choy fixes, constrain django-debug-toolbar

* Remove flaky bok-choy test

fix uploaded image aspect ratio in tinymce

BB-1744: Bump pymongo version and fix course export issue

[BB-1506] Use a callable as the default value for CourseEnrollment.mode

BOM-1111

PROD-1113: Fix retry_failed_photo_verifications.

Updating User.is_authenticated and User.is_anonymous as properties

Fix html editor for adding �

This patch would fix html editor
for adding � characters in
html attributes whenever cursor
is inside quotes. � characters
are added on save.

PROD-1076

Don't encode the filename.

We fixed this for when we sand_tarballs for local but not for when we
used django storages.  This should fix the filename when we get the file
from storages.

Only store bytes to s3 via boto2.

https://github.com/boto/boto/issues/2868

In python 3 contentfile can act like a file but return unicode strings.
Boto doesn't like that and it causes issues when encoding the bytes for
transfer to s3.

EDUCATOR-4846 - added team config service for xblocks.

Support anonymous users with new (Blockstore-based) XBlock Runtime

Quality / encoding

Remove comments

remove debug

Changed service implementation to make unit testing easier

Corrected service

code style

unit test cleanup

Clean up imports

Instantiate idv attempt with a string photo_id_key.

Implementation details:
* Anonymous users are assigned a unique ID (like 
  `anon42c08f9996194e2a9339`) which gets stored in the django session.
  `block.scope_ids.user_id` and `block.runtime.anonymous_student_id`
  will both return this value.
* User state for anonymous users is stored in the django cache and
  automatically expires as the cache gets pruned. Because user state is
  stored, anonymous users can use interactive blocks like capa problems.
* There is no mechanism for upgrading to a registered account and
  keeping user state since the user state store for anonymous users
  (EphemeralKeyValueStore) is completely different than the one for
  registered users (DjangoKeyValueStore/"CSM"), and has no "list all
  keys" functionality.
* "User State Summary" field values are shared among [recently active]
  anonymous users but are not shared with registered users.
* Anonymous users can only access the `public_view` of XBlocks, not the
  regular `student_view`.

When we run the management command, the photo_id_key is retrieved
through the orm and so is represented as a string.  However, when we do
the initial attempt, the object is instantiated and we refer to the key
without having decoded it.  The photo_id_key is sent as a part of the
request to software secure.  And if we have a byte representation their
signature checking will fail.

This is why the management command worked even when the site didn't.
It was getting a cleaned key via the orm.

Fix the bug where we return many programs if the number of courses the staff user is enrolled in are many

OverwriteStorage was removed from django-storages, so pull it into ed…

Correct the output file name for exports.

Support transcript files for video XBlocks in Blockstore

Rename order in CreditRequirement (1/3)

Upgrade edx-ora2 to fix studio edit view.

Added management command to add coursemode history from snapshot.

There was a serialization issue with one of the studio JS assets that
is rendered as a part of the edit view.

ENT-2452, ENT-2068 | Made the lms and learner portal alerts responsiv…

Ensure that certificate is not generated if a learner enrolled in
audit mode is whitelisted

PROD-978