Upgrade Django major (#144)

* Bump dependency versions

* Configure default auto field implementation

* fix admin to use token proxy model

* update django docs link

requirements.txt

@@ -1,27 +1,29 @@
+asgiref==3.4.1
 beautifulsoup4==4.7.1
 certifi==2019.6.16
-chardet==3.0.4
+charset-normalizer==2.0.4
 confusable-homoglyphs==3.2.0
 coverage==5.5
-Django==2.2.20
-django-appconf==1.0.3
-django-compressor==2.3
+Django==3.2.6
+django-appconf==1.0.4
+django-compressor==2.4.1
 django-debug-toolbar==3.2.1
 django-generate-secret-key==1.0.2
-django-picklefield==2.0
-django-registration==3.1.2
-django-sass-processor==0.7.3
-django-widget-tweaks==1.4.5
-djangorestframework==3.11.2
+django-picklefield==3.0.1
+django-registration==3.2
+django-sass-processor==1.0.1
+django-widget-tweaks==1.4.8
+djangorestframework==3.12.4
 idna==2.8
-libsass==0.19.2
+libsass==0.21.0
 pyparsing==2.4.7
 python-dateutil==2.8.1
-pytz==2019.1
+pytz==2021.1
 rcssmin==1.0.6
-requests==2.22.0
+requests==2.26.0
 rjsmin==1.1.0
-six==1.12.0
+six==1.16.0
 soupsieve==1.9.2
-sqlparse==0.3.0
-urllib3==1.25.8
+sqlparse==0.4.1
+typing-extensions==3.10.0.0
+urllib3==1.26.6