Update ORA2 repo version

Fix Python tests

Upgrade Recommender XBlock version

Remove unnecessary requirements and update bleacher usage

Keep html5lib unpinned

Upgrading requirements

Ignore python-interpolate-html for bleached html

This reverts commit f6c215ae.

LEARNER-6039

Note: this version update is backward incompatible.

ARCH-255

LEARNER-6469

Upgrade the django-ipware package from the old 1.1.0 version to the latest version that supports Python 3
(version 2.1.0 as of this commit)

This PR is intended to close INCR-7 issue ( see https://openedx.atlassian.net/browse/INCR-7 )

This PR updated edx-enterprise to 0.73.5 to pull in these changes and allow
filtering enterprises by slug
https://github.com/edx/edx-enterprise/pull/366
https://github.com/edx/edx-enterprise/pull/367

(version 1.3.4 as of this commit)

This commit is intended to close INCR-8 issue (see https://openedx.atlassian.net/browse/INCR-8 )

Update requirements

This upgrades DOT by reverting the revert.

This reverts commit 4d8b9c36

ARCH-180

Version bump for edx-enterprise. This version contains a fix for enterprise customer admin screen 500 error.

This is to upgrade the ddt package from the old 0.8.0 version to the latest version that supports Python3
(version 1.2.0 as of this commit)

This commit is intended to close INCR-6 issue (see https://openedx.atlassian.net/browse/INCR-6 )

ARCH-223

We added a migration to a ManyToMany key in both directions and that had
to be done with RunSQL which requires sqlparse
https://docs.djangoproject.com/en/1.11/ref/migration-operations/#runsql

ARCH-223

ARCH-220