This reverts commit 8a56e283.

and drop more pin

fix:
coin/members/tests.py::MemberAdminTests::test_cant_change_username_when_editing
  /usr/local/lib/python2.7/site-packages/django/contrib/admin/helpers.py:212: RemovedInDjango20Warning: Deprecated allow_tags attribute used on <bound method MemberCurrentLoanInline.action_buttons of <hardware_provisioning.admin.MemberCurrentLoanInline object at 0x7fdae0539dd0>>. Use django.utils.html.format_html(), format_html_join(), or django.utils.safestring.mark_safe() instead.

kind of.

Sorry, activelink, but you're not maintained anymore. We'll have to
re-implement this functionnality if we really want it.

to allow upgrade of django-netifield to >= 0.5. Its changelog states:
> Most applications should not require any adjustments as a result of this change

Clearly, this is not the case for us.

patch netaddr for this.

ref its changelog at 2.2.0rc1

fix:
Traceback (most recent call last):
  File "./manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 327, in execute
    django.setup()
  File "/usr/local/lib/python2.7/site-packages/django/__init__.py", line 18, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/usr/local/lib/python2.7/site-packages/django/apps/registry.py", line 85, in populate
    app_config = AppConfig.create(entry)
  File "/usr/local/lib/python2.7/site-packages/django/apps/config.py", line 116, in create
    mod = import_module(mod_path)
  File "/usr/local/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/coin/vpn/apps.py", line 7, in <module>
    from . import urls
  File "/coin/vpn/urls.py", line 6, in <module>
    from .views import VPNView, VPNGeneratePasswordView, get_graph
  File "/coin/vpn/views.py", line 16, in <module>
    from coin.members.models import Member
  File "/coin/coin/members/models.py", line 4, in <module>
    import ldapdb.models
  File "/usr/local/lib/python2.7/site-packages/ldapdb/models/__init__.py", line 5, in <module>
    from ldapdb.models.base import Model  # noqa
  File "/usr/local/lib/python2.7/site-packages/ldapdb/models/base.py", line 20, in <module>
    class Model(django.db.models.base.Model):
  File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 94, in __new__
    app_config = apps.get_containing_app_config(module)
  File "/usr/local/lib/python2.7/site-packages/django/apps/registry.py", line 239, in get_containing_app_config
    self.check_apps_ready()
  File "/usr/local/lib/python2.7/site-packages/django/apps/registry.py", line 124, in check_apps_ready
    raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

fix:
Traceback (most recent call last):
  File "./manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 353, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 327, in execute
    django.setup()
  File "/usr/local/lib/python2.7/site-packages/django/__init__.py", line 18, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/usr/local/lib/python2.7/site-packages/django/apps/registry.py", line 85, in populate
    app_config = AppConfig.create(entry)
  File "/usr/local/lib/python2.7/site-packages/django/apps/config.py", line 116, in create
    mod = import_module(mod_path)
  File "/usr/local/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/coin/hardware_provisioning/app.py", line 5, in <module>
    import coin.apps
  File "/coin/coin/apps.py", line 6, in <module>
    from .utils import rstrip_str
  File "/coin/coin/utils.py", line 22, in <module>
    from django.contrib.sites.models import Site
  File "/usr/local/lib/python2.7/site-packages/django/contrib/sites/models.py", line 83, in <module>
    class Site(models.Model):
  File "/usr/local/lib/python2.7/site-packages/django/db/models/base.py", line 94, in __new__
    app_config = apps.get_containing_app_config(module)
  File "/usr/local/lib/python2.7/site-packages/django/apps/registry.py", line 239, in get_containing_app_config
    self.check_apps_ready()
  File "/usr/local/lib/python2.7/site-packages/django/apps/registry.py", line 124, in check_apps_ready
    raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

ref. https://docs.djangoproject.com/en/1.10/ref/templates/upgrading/

fix pytest warning:

/usr/local/lib/python2.7/site-packages/django/template/utils.py:37: RemovedInDjango110Warning: You haven't defined a TEMPLATES setting. You must do so before upgrading to Django 1.10. Otherwise Django will be unable to load templates.

to start upgrade path, as pytest complains about:

/usr/local/lib/python2.7/site-packages/polymorphic/query.py:258: RemovedInDjango110Warning: The aggregates property is deprecated. Use annotations instead.
    if self.query.aggregates: