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In order for the two_factor module to still send an email
upon successful login on a blocked account, monkey patch the
list of forms used and replace the one for the auth step with
the custom version that sends an email.

This special form will send an email to a blocked account
owner on successful login attempt. This replaces what the
custom login view did prior to implementation of the 2FA.

Add instructions to run experiments from command line

See merge request !408

Remove asset edition

Closes #578, #576, #575, #574, #573, and #572

See merge request !398

Remove edition from doc

See merge request !407

Remove experiment editor

See merge request !403

Fix jsonschema to older version for buildout

See merge request !406

The latest version does not play nice with Python 3.7