Updated to Django 2.2

requirements.txt

@@ -1,13 +1,13 @@
-Django<1.12
-django-compressor==2.1
-django-crispy-forms==1.6.1
-django-debug-toolbar==1.9
-django-sass-processor==0.5.5
-djangorestframework==3.5.3
-gunicorn==19.4.5
-libsass==0.13.3
-psycopg2==2.8.5
-requests==2.13.0
-six==1.10.0
-Unipath==1.1
-whitenoise==5.2.0
+Django>=2.2,<3.0
+django-compressor>=2.4,<3.0
+django-crispy-forms>=1.9,<2.0
+django-debug-toolbar>=2.2,<3.0
+django-sass-processor>=0.8,<1.0
+djangorestframework>=3.11,<4.0
+gunicorn>=20.0,<21.0
+libsass>=0.20.0<1.0
+psycopg2>=2.8,<3.0
+requests>=2.24,<3.0
+six>=1.15,<2.0
+Unipath>=1.1,<2.0
+whitenoise>=5.1,<6.0