Fix error:
User instance is not bound to a Session; attribute refresh operation cannot proceed

If we scroll to the submit button, we can't see the "Submit" QRCode

The QRCode content doesn't matter. It's only there to trigger a CR to
submit the form.
Scanning a serial number will focus on the submit button so that
scanning the QRCode doesn't enter text in any form input field.

Changing the gitlab-ci file shouldn't modify the docker image

tower-cli easily allows to:
- pass extra variables to the job
- wait for the job to complete

Deploy to staging on tags as well.

- Remove QRcodes page
- Add Status to attributes page (only allow admin to add new statuses)

Actions QR Codes not visible anymore. Required ones shall be put on the
page where they are used.

Add a last modified query parameter to static resource.
This will force the browser to re-load resources (css, js...) after a new deploy.

Packages required only to generate the documentation.
They shouldn't really be in the final docker image but they are not very
big and it makes it much easier to generate the doc.

This reverts commit 4ddde36f.

This broke the loading of fonts. Fonts directory should be excluded.

The browser caches the static files (js, css...).
Flask-CacheBust adds a hash to the URL of each static file to force
clients to redownload the files when changed.

Note that the Ansible role shall use the ":master" tag for the image

The network range defines the IP to be allocated.
This is to reserve some specific addresses (for gateway for example).

An admin user should be able to define an interface outside the network
range.

The IP address select field was replaced with a string field
(initialized to the first available IP).

Fixes INFRA-200

Fixes INFRA-197

The interface name shall start with the hostname of the host it is
associated to.

Note that this is only enforced via the UI (from which most users will interact),
not from the API.

Fixes INFRA-195

- add domain_id on NetworkScope table to define a default domain
- add domain_id on Network (default to the Network Scope one)

Fixes INFRA-194

We don't want to submit the form when scanning a code bar or ICS id.
In keyboard mode, the scanner sends a CR as last character.

- Use gitlab-ci services instead of docker-compose to run postgres and
  redis
- Switch to docker socket

Allow to use a scanner configured as keyboard to register items
via the web UI.
1. The attributes should be selected manually
2. Focus set manually on ICS id
3. Scan an ICS id -> prefix removed and focus set to serial number
4. Scan serial number
5. Click on submit
6. Focus set automatically on ICS id
7. Repeat from 3

Every tagged release is automatically deployed to staging
by launching the job template from Ansible AWX